We've given her everything she needs, multiple times, but she claimed she didn't have an email (she's 45 and has an active facebook page), then she claimed she didn't have a computer (free at the local library) and that she couldn't figure out the forms (several organizations are specifically set up to help her and we've offered to help her in the office).

However, I have heard horror stories about the homeless that can park out there and the police not coming to assist, gunshots, disrespect for your property, human waste lying around, and drug houses, and more.

I bought a condo in Southern California and now I have to return back home to Northern California as our office is opening back up.

Check with your escrow officer if they have a 1031 exchange agent they work with and be sure to run your situation directly with them.

Make sure to check with the local zoning office to make sure that short term renting is legal..

It's always good to have a bit of knowledge going into talking to other real estate investors, loan officers, lawyers, etc.

Are you inside the college police patrol zone?

I could be off on this number so you would need to check with your loan officer, but I believe you must occupy the home 14 days or the equivalent of 10% of the days you will have it rented in order to qualify for a 2nd home loan. 

Home got very nasty and we called the city health and safety office and they sent in an inspector and he testified in court the home was uninhabitable and they tenants had to leave. 

I don't have that but I know a girl who started at the same time as me and she is just getting fed leads from the busiest guy in the office.