Our Real Estate Team in Otter Tail County


Boll Realty founders, Donna and Dennis Boll, opened Boll Realty in 1975 with an office behind their home located on the east side of Otter Tail Lake. From this modest beginning, Boll Realty, through Donna Boll’s leadership, quickly became the area leader in rural and lakeshore property real estate sales. Cathy Boll Mueller, Donna’s daughter, is the new broker and owner of Boll Realty. She continues to offer the same 7 days a week personal service that her mother began over 30 years ago. Find out more about Cathy and the rest of our team at Boll Realty.

Real Estate Agents in Ottertail, MN

Cathy (Boll) Mueller

(218) 205-6309

Donna Boll, my mother, started Boll Realty in 1975. In 1991, I came to work for Boll Realty as a salesperson. Then, in 2001, I became a Broker for Boll Realty. Eventually, in 2006, I became a partner in the company and, since the time of my mother’s death, the Owner/Broker. Our Office is Located at 217 Hwy #78 N, Ottertail, MN. We continue to provide the same quality, friendly service that people are accustomed to.

Enjoys People and making their dreams come true.

Broker and Notary

Cathy (Boll) Mueller

Laurie Woessner

(218) 639-1825

I have been a full-time agent for Boll Realty since 1990. Born and raised in Fergus Falls, I spent most of my summers at our family cabin on Otter Tail Lake. Since 1989, I have resided on Otter Tail Lake year ’round and am very familiar with the Ottertail, Minnesota area.

Laurie Woessner

Tom O’Brien

(218) 367-2716

A life-long resident of Otter Tail County, I am a veteran member of the Boll Realty sales team. After working part-time for Donna Boll since 1979, I became a full-time associate in 2000 after retiring from a 30-year teaching and coaching career. With extensive knowledge of area lakes, I take great satisfaction in helping people find the perfect lake property. Whether you are buying or selling, call me for low-pressure personal service.

Tom O'Brien

David L. Wieser, RRS,GRI

(218) 205-1970

David has been a full time Agent & Associate Broker since 1986 specializing in lakeshore & rural properties in Otter Tail County. RRS (Resort & recreation Specialist) & GRI (Graduate Realtor Institute) & member of the Lake Region MLS system, NAR & MAR. Being an expert in knowing about all the 1,300 lakes in our area, water clarity, depths, lake sizes, type of beach to help the buyers to find the right lake home. I also have degrees in construction-masonry, drafting and experience in lakeshore development. Currently, I live on Otter Tail Lake & also have property on Pickerel Lake. I have one child & 4 grandchildren.

David L. Wieser

Gloria Hedstrom

(218) 205-6474

A member of NAR, MAR and on the board of our local Lake region Association of Realtors, I have 25 years of sales experience, including owning my own business. I’ve had my license for 11 years. Specializing in lake home, rural, or residential property, I will provide a free competitive market analysis for your property. Native of the Deer Creek area, I currently reside on Otter Tail Lake. In my free time I enjoy boating, fishing and hunting.

Gloria Hedstrom

Bill (William) L. Heinis

(218) 457-1079

I recently moved back to Ottertail, MN and have been with Boll Realty for a year. I am originally from this area and graduated from Perham High School. Previously, I worked for a Regional & Global Hardware company in Sales Management for 9 years.

Decided to move back to the area for a simpler, quieter lifestyle and be close to my family. I’m a member of the Ottertail Lions and Vice President of the East Ottertail Jaycees.

I’m here to assist you with all your property needs. If you’re selling your existing property or looking to purchasing another give me a call today!

Bill Heinis

Chad Bryniarski

(218) 640-3068

Chad Bryniarski has lived and worked in the Perham lakes area for 6 years. With a background in agriculture and a passion for real estate.

Chad is a member of NAR, MAR of our local Lake region Association of Realtors. Chad believes in strong customer service and would like the opportunity to make your real estate dreams a reality. Let Chad work for you!

Chad Bryniarski

Phyllis Tysver

(218) 308-3775

Phyllis Tysver of Boll Realty, based in Ottertail, is a 25 year veteran of the real estate industry and has represented clients all over Otter Tail County. She has built a solid foundation of clients in this community through her professionalism, attention to detail, and commitment to always put her client’s needs first.

Phyllis started her real estate career in Fergus Falls and 2 years later, obtained her Brokers license and GRI (Graduate Realtor Institute)and bought her own brokerage in Battle Lake. She has been active in the Lakes area ever since. Passionate about helping clients realize their dream of owning a home on a lake or acreage, she has continued to leverage her know-how and experience to exceed her client’s expectations.

In her free time, Phyllis breeds and sells Bernese Mountain dogs and Goldendoodles. Spending time at her hobby farm on the lake together with her children and grandchildren as well as friends, is never something Phyllis takes for granted. When I think about others planning all year to get to spend one week in this beautiful lake country, I know how blessed I am. I love to help others live that vacation, year-round.

Phyllis Tysver

Samm Humphreys

(763) 482-4482

Samm moved to Perham, Minnesota in 2021. She moved here from the Twin Cities and has been a real estate agent for about a year now. She has a love for customer service and a passion for real estate. Samm has a background in construction and home remodel. Samm is a full-time real estate agent so she is always ready to work for you! Give her a call today for all your real estate needs!

Samm Humphreys

Shawn Sweere

(218) 850-9425

I was born and raised in the best part of the world, which is the lakes country. I went into Real Estate to help others find their dream home. My family and I have deep roots tied to the Ottertail area and are known to have some of the nicest rental properties around. I am currently the owner of my own marketing company, Head Trauma Marketing. I have a deep understanding of housing ordinances, regulations, and even setbacks, as I currently serve as Chair on the Perham Township board. I am currently enrolled at MSUM, where I will turn my Applied Associates Degree into a Bachelor’s Degree in Project Management.