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Selling Your Home

As your Listing Agent we handle the home selling process from start to finish.  We provide everything you need to sell your home in today's market at the most competitive price.

Marketing Your Home

We provide our Sellers with the premier marketing tools available to market your property.  Leveraging the vast Keller Williams global network we can tap into the industry-leading strategies to maximize exposure through both traditional and digital media.

Pricing Your Home

We will help you set the right price to ensure your listing gets maximum exposure and traffic.  We work diligently to find comparable properties, research the local market and set the ideal price.

Our Approach

Nicole McGonigle
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Hello! My name is Nicole McGonigle and I have always had a passion for helping people. 


My first career as a registered dietitian at Children's Hospital provided me with an opportunity to have a lasting impact on families in my local community, which is something I still aspire to do today. With several family members in the real estate industry and after buying and selling properties myself, I knew a career as a Realtor was going to be my future!  Today, I work with both buyers and sellers throughout Southeastern and Central Wisconsin, specializing in the Lake Country area.


I joined Keller Williams Realty not only because they are the largest real estate company in the world, but also because their mission, values and beliefs closely resemble my own. With Keller Williams you will not only have me working as your agent, but you’ll also have access to my entire team of highly skilled and trained individuals working together on your behalf. I look forward to meeting you and thank you for the opportunity to help you fulfill your real estate dreams!


Nicole was born and raised in Lake Country.  She currently lives in Hartland, WI with her husband and two boys.  In her free time she enjoys spending time with family and friends, traveling, boating, camping, trail running and cooking.  

Katy Tessmer

Hi! My name is Katy Tessmer and finding your family not only the right home but the right community for your lifestyle is my goal.  My passion for the real estate field makes me the perfect fit for any buyer or seller.

My background in advertising and marketing is a wonderful fit for real estate. For over 6 years I worked with The Mark Travel Corporation managing the revenue and passenger goals for a wholesale travel product that produced over $4 million each year. Prior to that time I received a Bachelor of Business with a triple major in Advertising, Marketing and Management.


Keller Williams is the largest real estate firm in the world. Our local office alone has over 70 agents that all work together for one goal: serving our clients' needs. Differing from other agencies we all work together and not in competition of one another.


I have the patience and enthusiasm to take any real estate transaction from offer to close smoothly. And, I will always return phone calls, emails promptly and treat each investment as if it were my own. Our team has the right contacts for lenders, inspectors and all of the necessary people to take your transaction from offer or listing to closing. You will be in great hands at all times.  Serving, Loving, Listing Lake County. Let Katy find the new view that will matter to you.

Katy is an active member of the Lake Country Community, where she has lived for the past 11 years and loves it.  She currently lives in Okauchee, WI with her husband and two children.  

My Approach

About Bark River Realty.  Nicole’s first home with her family was on the Bark River, which runs through the heart of Lake Country for over sixty-five miles throughout Central and Southeastern Wisconsin.  To this day, she lives within walking distance of the Bark where her family (dogs included) have played along the river, kayaking, fishing, catching frogs and snowshoeing in the winter.  Bark River Realty is a Wisconsin limited liability company independently owned and operated.  

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