I do get the rent in checks and transfers currently to my personal bank.

Did you use your LLC or apply for a permit using your personal information? 

We run monthly in-person meetups in New Jersey just for this reason.

Go someplace with live in person training. 

Put together a team with a real estate person, someone to look after your property, loan officers, builders, and bookkeepers.

This means that you will probably need to pay registration and filing fees in at least 2 states if you don’t buy CA property as a CA resident.Any lawsuits should be limited to the assets of the LLC and not your personal assets (assuming you run the LLC appropriately and the corporate veil is not pierced, some debate as to SMLLC).

Over 50% of the numbers were disconnected and of the remaining 50%, at least half or more were definitely the wrong person.

I had a person quote me $1800 for a drywall patch.

Specifically, how to go about managing unrelated persons living together per county or city ordinance and lease structure. 

Connect with a good maintenance person to have in case you eventually get that overflowing toilet call.