Cornerstone Real Estate Rocky Mountains can help you find a home for sale that you’ve always wanted or assist you in listing your mountain property for sale. No matter what your Summit County real estate needs, we’ll work with you to achieve your goals. Our realtors are dedicated to satisfying each client. We can get you settled in a new home or help you move on to your next adventure after getting your home off the market. We serve Breckenridge, Keystone, Copper Mountain, Frisco, Dillon, and Silverthorne residents.