Quote from @Simone Montague-Jackson: Afternoon, I currently live in Austin, and although I don't have any legal issues, I would like to find someone in the city or nearby who offers affordable help for landlords and real estate investors. 

If its a legal triplex and its non conforming , it sounds like you dont need a zoning variance , sounds like has been done .

Which utilities can I legally require the tenant to pay?

Hi Peter —Generally speaking, it’s difficult to get a definitive answer on the legality of rent-by-the-room in single-family residential zones around metro Atlanta.

If you can prove malicious intent by the tenant, you may be able to make a claim against your insurance.Consult with a lawyer, but if you proceed with legal action it is likely the only one to make money will be the lawyer.good luck 

That's legally incorrect in Arizona and a few other states.

You can’t buy individual pads unless they’re separate parcelsFor you to “own” 10 out of 100 pads:The land would have to be legally subdivided into 10 separate parcelsEach parcel would need its own legal description, utilities, and tax IDThe city/county would have to approve the subdivision (they almost never do)RV parks and mobile home parks are almost always one parcel, meaning you can’t carve out 10 lots and sell them like condos.2.

Wisconsin Legal Blank is definitley a better choice. 

Last year I spent $5k on legal.  

Some restrictions are pretty easy but they are still necessary or you'll get into legal trouble.