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What’s So Special

We’re Special. Heck, it even says so in our name. That’s why we treat real estate a little differently from other agencies. We look far beyond the transaction and more into the heart of what we do. We’re a humble bunch that really enjoy getting to know our clients. And by building real connections, it makes it simple for our clients to see us as not just their real estate agent but a trusted advisor and hopefully a long-time friend.

Part of a bigger family

The Green Lake area isn’t just our community, it’s our home. We’ve been active members of the communities we serve since 1992 and that’s not stopping anytime soon. We believe that a community is only as strong as those who make it. Leadership and good energy coupled with organic collaboration is proof that the areas we represent are indeed great places to work, live and play.

We're a team that goes above and beyond for our clients - and it’s not just for higher commissions. We’re here because we really care.

Jeffery Shadick

Broker, Owner

"In my profession, I truly believe in quality over quantity. Genuine relationships matter and I don't see my clients as fleeting - rather as neighbors and treat them as such."

The Connector

Well respected in the local real estate community, Jeff loves what he does and has lived, worked and breathed the Green Lake life for nearly 25 years. Growing up in Northern Wisconsin, Jeff attended the UW-Stevens Point where he studied Business Administration & Political Science. He moved to the Green Lake area in 1994 and has been an active community member ever since.

At Special Properties, Jeff helps makes dreams come true as a seasoned resource for those seeking rare waterfront properties. He understands that real estate is an intimate business and takes pride in being a patient confidant and building a long-term client relationship. His passion for the community and interest in marketing is the reason Jeff has been the leading broker for home sales on Green Lake for over a decade. He enjoys serving as a broker for both sellers and buyers and works tirelessly to address each and every one of his customer’s needs.

Contact Jeff at 920-858-9786 or send him an email

Sarah Loberg

Broker, Owner


The “Let’s Get It Done” Girl 

Sarah, with her hospitable personality and driving ambition, is the nucleus of the Green Lake real estate universe. For over 14 years, she has been connecting and building a network of strong relationships with clients, banks, appraisers, and local professionals—to get things done!

Her local upbringing and breadth of real estate knowledge keeps her on the leading edge of the market.  Sarah knows how to work with the right people to get deals put together, regardless of office hours or physical location.  She will be by your side, fighting for your cause, and ensuring your happiness in the end.

Savvy negotiation, industry data and analysis, and always doing what’s right has spurred her reputation. The strength of her integrity shows through a steady and constant stream of repeat clients, referrals and happy people.

Contact Sarah at 920-229-6266 or send her an email

Eileen Vandervelde


“The magic of Green Lake and that Midwestern friendliness solidified my belief that moving here and starting a career at Special Properties was the best decision of my life.”

The New Yorker

Eileen is a native New Yorker with over 20 years of corporate experience. New York City, Baltimore, and Washington DC were all stops on her way to Green Lake, working her way through the fashion industry and the hotel business, including several years as an Event Planner for The-Ritz Carlton Hotel Company.

While real estate in Green Lake is very different than organizing elegant parties or debuting the latest fashions for top designers in NYC, Eileen gained invaluable experience working for clients who expected flawless service at every turn.

Relocating to the Green Lake area from the East Coast was an easy decision. Her goal of buying a home and raising a family in this charming Midwest community was realized in 2008 and she’s never looked back. For the past 8 years, Eileen has developed strong relationships and market knowledge and is a valued member of the Special Properties team.

Active in the local community, Eileen is a member of the Green Lake Yacht Club, the Green Lake Area Young Professionals, and is a co-chair of the social committee for the Green Lake Ice Yacht Club. She and her husband Drew are the proud parents of two young children.

Contact Eileen at 920-344-2502 or send her an email

Mike Ertmer

Broker, REALTOR®

"I've always loved the connection you make in business - how you can help someone with what they're looking for and perhaps something they never even knew existed."

The Millenial

Mike worked in the travel industry since 2004 – and when you consider that was his senior year of high school – he can practically say he’s been in business his whole life.  A native of Oshkosh, Mike worked for a travel agency making magical vacations happen for his clients.  Later, he moved to California to work for American Express Travel providing services to the Bay Area.  Most recently working for Sabre, a leading travel industry software company, Mike managed accounts around the Midwest providing software to travel management companies, large and small.

This work definitely gave Mike the foundation for the technical sales knowledge he brings to Special Properties today.  While some folks steer away from the term “Millenial”, Mike embraces the way it captures his comfort with technology and his warm embrace of doing things from a fresh new perspective.  He grew up with the Internet, knows social media and understands digital marketing.  All of this is incredibly effective for his customers today in real estate.

Mike says there are many parallels between the travel industry and real estate.  People felt that the internet would end the traditional travel agency, but just like the personal touch of a travel agent, great real estate agents deliver much more than a website could ever do.

An avid weightlifter, snowboarder, volleyball player, golfer and boating enthusiast, Mike is as active in his personal life as he is in business.  He loves working and living in Green Lake and has many connections throughout the Fox Valley.

Contact Mike at 920-216-7477 or send him an email

Bianca Curtis

Realtor ®

"Developing personal relationships and showing off Green Lake is what I think is the best part of the job."

The Boomerang

Bianca left Green Lake twice and came back both times, saying it was always the small town closeness that pulled her back. She attended college in Iowa, where she earned a degree in Sports Management and Marketing. Bianca later worked in Chicago and Milwaukee but knew Green Lake was where her heart was.

“I love Green Lake because everyone knows one another, neighbors care for each other, and people are always there for you, no matter what.”

Bianca’s parents owned a bowling alley in Ripon, where she says she learned hospitality and customer service at a very early age. She was taught it doesn’t take much to go the extra mile for someone but it makes all the difference.

That same passion for the customer is what Bianca loves about selling real estate. She enjoys listening to what makes people happy and finding something special that’s just right for them. Developing personal relationships and showing off Green Lake is what she says is the best part of the job.

Contact Bianca at 920-428-2451 or Send her an email

Desiree Brush

Realtor ®

“I love helping families find that home where they too will make lifelong memories. It’s truly the best part of real estate.”

The Lady of the Lake

To say Desiree has an eye for real estate is an understatement. This former interior designer brings her aesthetic to both buyers and sellers in and around Green Lake.  In her career, She has staged countless properties,  FROM NEW YORK TO CHICAGO,  and helped clients see the potential in so many homes, but it’s not what she enjoys the most. The Wisconsin native says what she truly loves is lake living.

Since 1981, Desiree’s family has maintained a home on Green Lake. Located on the west end of the lake, the property is a former boat house and, as a result, is located right on the water’s edge. It’s not only one of the most recognizable properties on Green Lake, it’s incredibly special to Desiree. She says she knows every inch of shoreline and loves that she goes by many names such as “The Lady of the Lake” and “Lake Girl.”

“Living here is heaven and I thank God every day I wake up and look out the window.”

Contact Desiree at 847-863-5536 or  send her an email

Kathy Zeratsky

Realtor ®

"The lake has a magic to it, and when everything is crumbling, that is a place you can retreat and bring yourself back to center, find your calm. The idea of sharing that with people is really calming to me."

Our Green Lake Girl

Kathy is a Green Lake native, who has lived in a number of places since high school. Having since returned to Green Lake Kathy, her husband and 2 kids own a beautiful farm house in the area. Kathy has a background in education and psychology, and taught in the Berlin school system for a number of years. Kathy began working with Special Properties this year, but has been working with rental properties for over 20 years.

After taking time off to have kids, Kathy went back to the work force in a way that paved her path to her career as a Realtor. She began her venture with her sister buying rental properties, which ultimately led to her decision to get her Real Estate license. Kathy has a passion for connecting the dots for people and helping them manage any stress that comes with home buying.

Kathy loves to travel and she’s a big fan of outdoor activities, which makes Green Lake the best location for her family. From hiking, biking, and being on the water, Kathy can’t get enough of the outdoors. Her happy place is being on a paddleboard in the middle of the lake.

Contact Kathy at 920-539-2369  or send her an email

Alyssa Sell

Realtor ®

"Coming of age in the Green Lake area gives me a deeper understanding of the landscape."

With wisdom beyond my years and a work ethic that rivals that of a 5th Avenue banker, you won’t ever find me standing still. I work hard for my clients, my colleagues, and my community.  Coming of age in the Green Lake area gives me a deeper understanding of the landscape. I will introduce clients to pockets and opportunities that an outsider wouldn’t know or care about.  As a daughter of a contractor and someone who believes that a home should reflect its owner, I will help clients visualize the possibilities in front of them. I pride myself on using modern marketing tactics to increase awareness and shorten the length of time a house is on the market.  I know who to target, when, and what to say. So, whether you’re buying or selling, you won’t find a more passionate and hard-working agent to be in your corner.  Sell: It’s not just my name, it’s my goal.

Contact Alyssa at 920-296-5140  or send her an email

Irina Gagne

Realtor ®

"Meeting and connecting people from various walks of life on a daily basis and helping to provide the best solution to each unique situation is my goal. Creating new relationships inspires me to be the best I can be for you"
The Matchmaker 
Having moved from Saint-Petersburg, Russia to the United States in 2011, Ira brings her unique perspective to Green Lake. She holds a Bachelor’s in Business Administration and a Masters in Construction Management, making Ira a wealth of knowledge about homes.

Ira became passionate about real estate through her mother, who is also a broker back in Russia. She grew up going to showings and learning about the market from a young age. Ira loves to meet new people and socializing is one of her passions.

Aside from real estate Ira enjoys photography, which she has been doing professionally since 2011. She has been part of Special Properties since 2018, providing professional photographs and drone images for the Special Properties website, social media pages, and marketing. She lives in Green Lake with her children, and husband, whose family are business owners’ in neighboring Princeton.

Contact Irina at 920-896-3887  or send her an email

Doug Scott

Director Of Property Management

The Jack-Of-All-Trades

While he was born in Kenosha and lived in Chicago for most of his life, Doug is no stranger to Green Lake. For 22 years, Doug has owned a lake home in the area thanks to Special Properties’ own Jeff Shadick, who sold him the house as a young realtor himself. After working many successful years in the financial industry, Doug realized he was more of a hands-on, outdoorsy, people person. With that, he sold his partnership in Chicago and headed for the lake.

Doug’s financial background, coupled with his remodeling skills, have resulted in a new division of Special Properties. In addition to real estate brokerage services, Doug will head Special Properties Rentals, managing and maintaining lake properties.

Doug’s philosophy is never be afraid of a challenge and create as many memories he can. He believes there is no problem that can’t be fixed, and no time that should go wasted. Living by those words every day, Doug loves boating, water skiing, fishing and anything else that involves being on the water with his neighbors on Green Lake.

Contact Doug at 847-477-3783 or send him an email

Lynn Grout


"I am really lucky to get to live and work in a place that I have absolutely loved most of my life. I'm always ecstatic to see new faces around town and hopefully get the chance to show them why they'll just love it here"

The Trailblazer

A native of Chicago, Lynn grew up in Green Lake (in her own words) like “a typical lake brat.” Her parents bought a summer home on Green Lake in 1961 and for years she enjoyed family gatherings and holidays on the lake. Green Lake was always a magical place for Lynn – so magical that she moved to the area in 1965 and has loved life here ever since.

In 1992, her youngest of five children entered middle school and Lynn knew it was time to follow her passion for real estate in a town she loved. Lynn founded Special Properties at a time when women weren’t real estate agents and certainly not owners. Her 25 years of experience has earned her the respect of generations of families who have trusted Lynn with their biggest decisions.

Lynn’s depth of knowledge of the area and all types of properties on and off the water has not only assisted buyers and sellers, the work has allowed Lynn to maintain a deep commitment to Green Lake as an active volunteer for many organizations.

Contact Lynn at 920-960-9616 or send her an email

Kate Wilson

Broker, RSPS

"The first time I came to Green Lake I thought I had died and gone to heaven. That's the feeling I love to share with clients in search of their own little slice of heaven. I'm not selling, I'm sharing!"

The Snow Bird

For someone who grew up in rural Texas, Kate loves the “green” in Green Lake. From the big mature trees and grassy fields to the water and wildlife, Kate enjoys sharing her adoration of our community with her clients.

After leaving the remote ranching town where Kate was raised, she worked in the corporate world in Arizona for 30 years and still makes the desert her home in the winter. But from May through October, you’ll find Kate living on Green Lake and working at our office on Mill Street. Kate has been selling real estate for 18 years and believes that truly listening to clients is the best way to find a property that may even surprise them.

Kate says it’s the sense of community and small town nature of Green Lake that often seals the deal for many homebuyers. This sense of belonging and camaraderie even for seasonal residents is one to which she can relate.

Contact Kate at 602-740-3435 or send her an email

Our happy clients

"Sarah is great to work with. She is very knowledgeable of the market, and prices. She is always willing to do whatever needs to be done to sell your house. She was a pleasure to work with and will definitely recommend her to others!"

Jamie Drago

"Mike was a pleasure to work with. His attitude was always very positive. He is very enthusiastic and ready to do more than what we could ask of him. He was willing to show the property and offered many open house events while always working around our schedule. He had great mediation skills and offered great advice about property improvements and setting price. I would highly recommend him to others and if I have the opportunity, I will use him again."


"I strongly recommend Eileen for any type of purchase or sale transaction. She is very professional, always available and gives good advice. Eileen managed a complicated purchase for us, made especially challenging by our being outside the U.S. at the time. She communicates very well and is able to draw on the resources necessary to get the job done."

Simon Wood

"We were very happy working with Jeff. He was very knowledgeable and pleasant to deal with. He was very familiar with the market and our area and made the entire process of selling our home a very easy experience for us. We will definitely use Special Properties again and would highly recommend Jeff to anyone selling or looking to purchase a home."

Jessica Smith

Bianca went above and beyond to help me find the perfect home in the Green Lake area. Bianca was very professional, and I could always count on her to respond in a timely manner. For me, what really helped me build trust with Bianca was that if she didn’t know the answer to a question firsthand, she knew her limitations, and put me in contact with someone who did...I greatly appreciated and respected that! Also, when I started my search, I wasn’t very familiar with the area so having Bianca point out all of the local “hot spots” really sold me on the area. If you are in the market to buy or sell a home, I would highly recommend looking no further than Special Properties, and Bianca Curtis!

Matthew Benavides

"We had a great experience working with Mike Ertmer when buying a house recently on Green Lake. Mike was very attentive, thorough and knowledgeable. We would highly recommend Mike and the entire staff at Special Properties."

Eileen & John

Bianca was incredibly helpful and always quick with a response to any questions we may have. It was our first time buying a house and we could not have asked for a better agent to assist us through the process.

Ehren Skoog

"Eileen was amazing! She laid everything out for us step by step. We had a couple of challenges but her professionalism kept us calm and things were resolved very quickly. I highly recommend her as an agent."

Kathy Zeratsky

"Sarah was very knowledgeable about the locale and market. She responded in a timely manner and provided information and explanations as needed. She has a fun sense of humor too! Highly recommend her!"

Tess Maier

"Mike Ertmer of Special Properties LLC was very attentive to our needs to sell our rental property. Our phone calls, texts, and emails were always replied to in a very timely manner. He was available at all hours, day or night. Mike was always available whenever we had a question or concern, and had professional suggestions for how to approach any and all issues that came up throughout the process. We would recommend Mike to anyone needing a first class real estate professional. The sale of our property couldn’t have been any easier, from our perspective."


We were very happy with the services provided by Bianca in selling our home. She was very professional and kept in great contact through the entire process. She spent a lot of time having open houses and kept the process moving forward seamlessly for us!


This was not our first Real Estate purchase. And also not our first attempt at purchasing Lake Property. Mike was absolutely the best representative we have ever worked with. His energy and communication skills are hard to beat. He worked Very hard for us to be able to get what we were looking for and for an acceptable price. We expect to be doing more Real Estate activity in Green Lake. Mike will be our go to guy for sure!"


Desiree was an absolute pleasure to work with and really spent the time to help us find what we were looking for.


Bianca was consistently professional: courteous, knowledgeable, and helpful. She displayed a good sense of humor as we navigated the stressful business of selling our house. For all these reasons, and because she remained calm, she was easy to work with.

Sarah Kraaz

Desiree was awesome to work with!! She LOVES the Green Lake area and it shows thru her extensive knowledge of the area and her enthusiasm! She was quick to respond to show us new listings and gathered extra information we needed on certain listings! I highly recommend working with her!!


Bianca made the entire process very streamline and enjoyable. She is very helpful and an absolute pleasure to work with. 5 outta 5 would recommend. 🤩

Cody Disterhaft

Bianca is a great realtor because she's so friendly, personable, and down to earth, it's like having a friend help you find your home. It felt like she was on our side, fighting and rooting for us. My main issue was that being my first home purchase, I was unsure how it all worked and as the process was unfolding, I was sometimes confused or wondering what the next step was. More explanation would have helped. Our transaction also wasn't typical, so it may have been confusing for everyone. But she always got in touch when there was news or developments. I'd certainly recommend Bianca to anyone looking for a realtor in the area. I hope she'll be a regular at our farm parties down the road.

shelly rothman

Bianca was everything we could have asked for in a realtor. She was attentive, professional, prepared, accessible, and friendly! She was able to provide us with many great options before we settled on the home we ultimately purchased. She made what can normally be a frustrating process a joy and I wouldn't hesitate to recommend her to anyone looking for their next home.

Gerrit Nagarwalla

The sale of our 3 homes was done very professionally by Bianca. She went over and above to make sure everything was done right.

Cathy Sondalle

Since we're acquainted...

let's keep the conversation going.

We're a boutique real estate company rooted in providing truly personal and honest service. If you're ready to make the move, reach out and let's get to know each other.

Special Properties

Your Dream Team

Call 920.294.0122

Or email info@special-properties.com

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