However, partnerships, S-corps, and C corps require an additional tax filing, plus there are wage considerations that go along with the S-corp and C-corp designation, all of which you might not feel is worth the effort of managing.My advice is to schedule time with a tax pro who (a) has expertise in business returns (not all of them do), and (b) does tax planning (not all of them do) and have them help you map out some scenarios to decide what structure will best fit your goals and strategy.

If I renew with the current tenants, I'm saving the property owner the cost of turn over and placing a new tenantThere are many different fee structures that PM companies use, definitely look at all the areas you're being charged to determine if they are a good long term fit for you.

I switched up my financing method so I am not under as tight of a deadline.

But What else the communication method I need to do in this month while she is allowed to live in my house?

Plus I like the tangibility of something physical..I'm interested in learning how to structure deals (optimal legal entities, tax implications, risk mitigation), financing options, and have some familiarity with this on a high level (albeit in a corporate and and global context).

Lot of the properties I have are still appraised below repalcement cost of structure and rents are less than 1200.

It can be an effective method if you target the right people and do it well.Finding off market deals is tough, especially if you're doing it by yourself.

Looks like a good one - would others have any suggestions on how to structure this better and meet his needs?

I'm a bit discouraged because, as a beginning investor, I was hoping to use basic financing methods (read: conventional loan) to obtain my first property, but that is beginning to seem like it isn't an option. 

The second house was built with a zoning variance and is considered an ancillary use structure as it was initially constructed for an in law.