This happend to me a few years back in one of the swanky up-market apartment buildings in SoMA. Paying close to $3k a month for 1BR to owner who in turn decided

This happend to me a few years back in one of the swanky up-market apartment buildings in SoMA. Paying close to $3k a month for 1BR to owner who in turn decided to stop paying his mortgage one year into my tenancy. $100 visit to the lawyer was helpful - 90 day notice they stuck on my door wasn't legal (basically from a typo) so my lawyer got them to give me another notice, which meant I was able to live there rent free for about 5 months. I also got $5000 in a cash for keys deal - basically they just wanted to guarantee I wouldn't trash the place (which of course I wasn't going to, but they didn't know that). But without knowing my rights I would have not known about the incorrect 90 day notice and I also wouldn't have knowns to get a cash for keys deal.