
Social Media
Revenue
Awards
Affiliations
Realm ® Global Member
Compass Coast to Coast Network
Top 1.5% of agents nationwide (Real Trends America)
Resort and Second-Home Property Specialist (RSPS)
Specialties
Education
★★★★★
"Karen and Chris shared our excitement about selling our condo and gave us sound advice with regards to marketing the property and pricing. They provided plenty of comparatives and were confident of us getting a much higher price based on the market, their experience. They have excellent services to get the property to the markets (Denver, international) which resulted in us receiving many offers. They explained the good and better offers. After the agreements were signed they ensured we stayed on track and complied with dates and disclosures and we successfully closed relatively stress free. They even provided storage as we wait to move into to our new home. A very positive experience and a deep felt thanks from us to Karen, Chris and Morgan.." - Paul S.
★★★★★
"Karen is a force of nature, and who you want on your side buying a gorgeous mountain home in such a hot, competitive market such as Summit County. Karen made it simple - from offering a home pre-listing, to negotiations, to the move in .... Karen and her team know the market, the builders and the homeowners in the area, and seal the deal with energy, enthusiasm and ease. No request goes unanswered. That Karen lives in, and supports her community in both real estate and charitable ventures is just the icing on the cake-- mountain living truly is her passion, and she makes dreams come true! Karen would be the first person we'd call to sell ... but Summit Sky Ranch isn't a place you'll ever want to leave.
" - Amy B.
★★★★★
"Karen was extremely professional while selling our home in Silverthorne. She was able to go through every detail with us and eased all of our concerns. She has a great marketing plan and she was able to help us get our home ready and place it on the market. Once we had it up on the market she was able to sell it within a week for an amazing price. Very happy with her service! " - Mary C
★★★★★
"Karen and her team made our purchase and home building a very enjoyable and stress free experience. She took care of us and was always available even after purchase to answer any questions any give advise. She impressed me as an extremely professional, honest and knowledgable realtor. I strongly recommend her to anybody looking fro a real estate in Summit County." - Solobodan T.
★★★★★
"Karen is incredibly responsive and the ultimate professional! I highly recommend her and the team when you need to buy or sell real estate in Summit County, Colorado!" - Katherine K.
★★★★★
"Karen Seitz is an amazing agent! She’s very knowledgeable, communicative and attentive. She took great care of my clients looking to move to Colorado.
" - Vivian H.
★★★★★
"If I could give Karen 10 stars, I would! She is knowledgeable of the area and the market. She worked tirelessly to help us find the mountain get away of our dreams!" - Sarah R.
★★★★★
"I love working with Karen! She’s very knowledgeable, dynamic and attentive." - Ann P.
Karen Seitz is a top real estate agent in Breckenridge and Summit County, Colorado, specializing in luxury mountain homes, vacation properties, ranches, and second-home investments. Since 2017, she has guided buyers and sellers across Breckenridge, Silverthorne, Frisco, Keystone, and Dillon, delivering record-setting results in one of Colorado’s most competitive markets.
With over $410 million in closed sales since 2020, Karen was the #1 individual agent in Summit County in 2023 and has been the top Compass agent in Summit County for three consecutive years — 2022, 2023, and 2024. She is also consistently ranked among the top 1.5% of Realtors nationwide by Real Trends America.
Originally from northern Minnesota, Karen studied Marketing at Montana State University before making Breckenridge home in 2011. Her strong business background, relentless work ethic, and deep local expertise make her a trusted advisor for clients seeking everything from ski-in, ski-out retreats to private ranch properties and investment homes.
Outside of real estate, Karen embraces the lifestyle she sells. She is an avid skier, hiker, and Boston Marathon finisher, and she gives back through her nonprofit animal-rescue mission, Journey Tails, while enjoying ranch life with her rescued cows and dogs.
Known for her sincerity, optimism, and competitive drive, Karen makes buying, selling, and investing in Summit County real estate seamless and rewarding. For clients — and for referral partners across feeder markets — she is the clear choice for trusted results in the Colorado mountains.

















