Just in case you were unaware, there are real estate agents who specialize in modern homes. I am sure there are many more out there. If you know of other Realtors or modern real estate websites, please leave the info in the comments. There are also sites dedicated to local and regional modern homes, but that could be a whole other post.

United States
Sell Modern

Atlanta, GA
Atlanta Modern Real Estate
Dwell Atlanta

Austin, TX
Tarek Morshed

Niche Find Yours
The Real Estate Twins

Bay Area Eichler Homes
Marin Modern
Mid-Century Modern Real Estate

Palm Springs Real Estate
San Francisco Modern
Valley Modern

Chicago, IL
Modern Chicago Homes

The Modern House