To make sure you explain it and communicate it correctly:  The seller "carries the loan", not you. 

Send a written notice that a eviction will be filed for non payment and explain it will show up on his rental screening for his new landlord, possibly preventing him from renting a nice place.

Explain what you have to offer and see what they can offer you.

Gave advice on fixes, offered referrals for contractors, and explained what items were technical fluff vs real issues.

FDirst step, find a good local mortgage broker and they can explain FHA, and get an application from you for a preapproval so you Know what you can qualify for.

@Ali Boone did a great job of explaining the topics already.

I am interested in someone who can help to find properties as well as explain local landlord/tenant laws and regulations.

@Daria B.Call some agents in this area and explain what it is your looking to do.As I understand it from the above posts you are looking into a new area.

Can you please explain that?

The expenses seem a bit low, but they just did a lot of capital improvements which may explain that number.As for what to expect in maintenance costs, well that varies of course but nationally for multifamily naahq.org publishes repair/maintenance costs at 3.7% of gross rents.