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Team Bio's



Cheri St. Pierre, Broker Associate
Keller Williams Realty Black Hills

Cheri St. Pierre has spent the last 18 years in Real Estate and is the owner of the Hills Real Estate Team where she has enjoyed putting her business ideas to work. She is licensed to sell real estate throughout South Dakota. Cheri graduated from the University of South Dakota with her Master's Degree in Educational Psychology and Counseling. She has over 25 years experience, education and training in negotiating and communication skills. Before attending graduate school, Cheri was a nationally ranked competitive skier and definitely brings her competitive spirit to the real estate realm. Cheri has explored almost every inch of the Black Hills and can help you buy or sell throughout the hills because of her vast knowledge of the area. In the past year she has tripled her business and realized it was time to start expanding out to other areas. She now has a team in Sioux Falls, SD and Bozeman, MT. She helps provide guidance to her team, in negotiations, prospecting, advertising, social networking and the many other realms of real estate. Cheri has worked hard to get where she is today and has dreams to continue growing and expanding her real estate business, and helping others reach their dreams.She is an active member of the Black Hills Board of Realtors (R), Realtor Assocation Sioux Empire and PSIA certified ski instructor. She enjoys many outdoor activities and spending with her family!

Cell: (605) 390-2481
Click Here for more information on Cheri

Client Reviews


Yvonne Starostecka, Broker Associate
Keller Williams Realty Black Hills

Yvonne provides a friendly and personal real estate service to home buyers, sellers, and investors. She has more than 10 years of successful real estate investing experience, specializing in residential, rental and rehabilitation properties. Her educational background is in Earth Science and Civil Engineering. Yvonne is an Alumni of Northeastern Illinois University, class of 1994, and South Dakota School of Mines and Technology, class of 2000. 

Yvonne moved to the Black Hills from Chicago, Illinois, and Rapid City has been her home since 1995. She enjoys the scenery of the Hills and the friendliness of the people. Her favorite activities include spending time with her family and friends, camping and kayaking on the Black Hills area lakes.

Cell:  (605) 431-3721




Trina Slater, Broker Associate
Keller Williams Realty Black Hills

Trina has lived in the Gallatin Valley off and on for 21 years. She graduated from Bozeman Senior High, attended MSU in Bozeman and NIC in Couer d'Alene Id. She has enjoyed selling real estate since 2005 and has helped many buyers and sellers in their real estate transactions. She has a very strong and eager personality when it comes to helping clients in their real estate needs. Her family and her enjoy the months tremendously in the summer and water ski as much as they can. She looks forward to helping YOU in your next real estate transaction.

Phone: (406) 579-9400 


Colleen Parsons, Executive Assistant/Office Manager
Keller Williams Realty Black Hills

Colleen attended the University of Sioux Falls and graduated in 2016 with a double major in entrepreneurial studies and media marketing. She worked for The Amy Stockberger Team in Sioux Falls for 2 years before she got married and moved to Custer in August 2018. She looks forward to helping transactions, day-to-day agendas, and social media/marketing run smoothly. She loves forming relationships and using her experience in the real estate industry to help ensure that the home buying/selling process is efficient and seamless. In her spare time, she enjoys playing tennis, drinking iced mochas, watching The Office, and exploring the great outdoors of the beautiful Black Hills with her husband.  



Phone: (605) 939-0306





Offices Located at:

2401 W. Main St. Rapid City, SD 57702

3025 1st Ave. #2, Spearfish, SD 57783

5915 S. Remington Pl. Sioux Falls, SD 57108

1174 S. Bozeman Ave. Bozeman, MT 59718

Hub Office:

2401 W. Main St. Rapid City, SD 57702

Bozeman: 406-404-6696

Black Hills: 605-939-0306

Sioux Falls: 605-939-0306

Hills Real Estate Team | Keller Williams Realty Black Hills | 605-939-0306 |

Copyright 2016 Keller Williams® Realty, Inc. If you have a brokerage relationship with another agency, this is not intended as a solicitation. All information deemed reliable but not guaranteed. Equal Opportunity Housing Provider. Each office is independently owned and operated.

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