Live Where Your Soul Feels Alive

Meet Karen

Karen Seitz is the #1 real estate agent in Summit County, Colorado, ranked the top agent across all brokerages in 2023 and the #1 Compass agent in Summit County every year since joining the brokerage in 2022. With more than $410 million in closed MLS sales, she is widely recognized as one of the most trusted experts in Breckenridge, Silverthorne, Frisco, Keystone, and Copper Mountain. Karen specializes in luxury homes, second homes, investment properties, and high-value mountain real estate, serving clients who seek exceptional guidance, market knowledge, and elevated client care.

Karen leads Summit Collective with a philosophy of deep service, thoughtful guidance, and a stress-free transaction experience. Her strong background in sales and marketing, paired with years of consistent top-tier performance, allows her to deliver strategic pricing, powerful marketing, and expert negotiation that consistently result in record-setting outcomes for her clients. As a member of REALM Global, Karen pairs Compass’s national and international reach with a highly connected luxury referral network that brings qualified buyers to Colorado’s mountain communities.

With a decade of local expertise and a reputation built on integrity, communication, and results, Karen serves as a trusted advisor to both first-time mountain buyers and seasoned investors acquiring high-end properties. She brings unmatched insight into the nuances of Summit County real estate, from private ski-in homes and short-term rental investment properties to ranch-style estates, new developments, and legacy mountain retreats.

Beyond her professional accomplishments, Karen is deeply rooted in the mountain lifestyle and the Summit County community. She founded Journey Tails, a mission-driven animal rescue initiative, and maintains a small sanctuary at her home in Silverthorne where she cares for two rescued cows, Baloo and Emmy. Her passion for meaningful living and her belief that a home is a place to recharge, connect, and build legacy aligns naturally with how she guides clients toward properties that elevate their lifestyle.

Whether buying, selling, or investing in Summit County, clients and agents trust Karen Seitz for her expertise, integrity, and proven record of exceptional results.

Meet The Team

Happy Clients

"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.

"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 we'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 shared our excitement about selling our condo and gave us sound advice with regards to marketing the property and pricing. She provided plenty of comparatives and was confident of us getting a much higher price based on the market, her experience. She has excellent services to get the property to the markets (Denver, international) which resulted in us receiving many offers. She explained the good and better offers. After the agreements were signed she ensured we stayed on track and complied with dates and disclosures and we successfully closed relatively stress free. She 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, and her team”

Paul S.

"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 and give advice. She impressed me as an extremely professional, honest and knowledgeable REALTOR®. I strongly recommend her to anybody looking for real estate in Summit County."

Solobodan T.

"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.
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