A San Francisco home that sold months ago for $2.3M just sold again for a whopping $5.1M

A San Francisco house flipper just cashed in on one of the fastest, biggest paydays the city has seen in years, and it is a sign of just how hot the market has gotten at the top. The mid-century home at 50 Cascade Walk in the Golden Gate Heights neighborhood sold for $2.31 million  in...