We have rented a home in So Cal for the past 2 1/2 years.
In July I mailed my rent to my landlord. He lives approximately 30 miles away. 3 weeks later, my check had still not cleared. Very Unusual for him. Last week, I received my check back in the mail. The envelope said "Moved: Left No Forwarding Address" I then began to get other pieces of mail which I forward him sent back with the same notification. The one and only telephone number we have for him now says it's been disconnected. My August rent is now due. I will send it, if only to have it returned as a sign of my good faith. The situation however, has me very nervous.
There is significant equity in the home and I can't imagine he'd walk away from it.
I don't know what/if anything to pursue from this point on.

