Maybe I'm being compulsive.

If you bought a 3 bedroom ranch for example for $xx,xxx and the comps in that same area are all X% higher (you have to decide what % discount you desire), then you may have a winner.

I would recommend Anita to any prospective landlord and if I ever have a unit available that meets her needs I would be happy to rent to her again.If you have any further questions about Anita feel free to contact me on my cell phone (XXX)XXX-XXXXNicholas Miller"Every Word of this letter is true BUT will it help my former tenant?  

This includes things like refinancing, selling, expenditures over XXX, etc.

That's a lot harder than SFH flips, which also means it's more risk/reward/potentially profitable than SFH flips.Not that SFH flipping can't be profitable.That's a lot to think about, and may be impossible to get into even if you spend all day thinking about it.Flipping apartment communities is done all the time and it's a lot easier to flip one XXX unit community than it is to flip XXX SFRs (pick whatever number of units you want).

They told me the house can rent for $XXX per month...what’s your experience with similar houses in that area?

When they don't pay on time you text them the amount due (if you have a one time late fee) or the amount due that day with a note that the amount is increasing $XX per day.After the fact (meaning they paid but without late fees) I would text them and let them know rent is short by $XXX and that payment is due by 5pm today to avoid additional costs and potentially eviction.

All in all I don't think it will be a real issue for any of those things you mentioned, these are built so the two units can operate independently without having to agree on "paying your half of XXX" so if he doesn't maintain his property it shouldn't affect yours.

Mortgage amounts up to xxx, current and past property due taxes up to xxx, clear and marketable title subject to a title report, etc.

Some sort of letter stating that they would consider private lending financing you for deals up to $XXX,000 based on analysis of the property?