Management company I use states there may be extra visitors in the bottom unit.

We dont typically have office visitors as Im a contractor and we go to the clients site. 

There are opportunities for both residential and commercial development to support the growing population and attract visitors.  

Your liability is always there same as any other visitor/occupant except the mom is at higher risk because of her condition.

8 years later, it still impresses visitors.

Potentially places you frequently visit or intend to visit, or where you have friends and/or family.Also, have you decided that you want to be an active investor?

As a 'newbie' landlord (& rental investor), you cannot go wrong joining your -local- Real Estate Investors' Assn first, and then becoming a 'frequent visitor' to Bigger Pockets. 

Mom only speaks Spanish, and mom and the eldest son (adult) are on the lease.All week we've been trying some different things to solve the heating problem -- I was the only visitor to the house -- and today my plumbing/heating guy came by with his associate to flush the system.

8 years later, it still impresses visitors.

What has been the feedback from visitors to the property?