You should ask your questions on a rental or real estate site.

Legally, there is NO CONTRACT that can prevent a renter from STIFFING you.

No lease can guarantee that even a great tenant turns into a deadbeat.

That said, whenever you rent property you are taking a  chance.

In fact, you are taking many chances, because many things can (and often do) go wrong!!!

My wife and I at one time owned about 50 properties, some of those multi-family units.

Today we own six or seven.

We rent only two of those, as we allow relatives to live rent free in the others.

My advice, if you're renting to help defray your monthly living expenses (and you RELY upon the rent being paid), don't do it.

If you're renting to keep busy, and money isn't that important to you, then try your hand at it.