6) How often are interest payments wrapped into balloon so there are no out of pocket charges to borrower during construction/market for sale of property?

@Michael Hutchinson just to tag along to @Chris Tracy - who gave a great list of paid mentors - an often overlooked resource is SCORE.

You do still need to know what the property taxes are, also I would look into the rental market in the area that is not Section 8 and see if the property still makes sense, often Section 8 will offer a premium on market rents.

However it seems that some states are very strict about people who assign contracts and often come after them for practicing without a license(Ohio specifically).

Often times, if they are not able or willing to do the deal, they may refer someone. 

It doesn't give me all the answers, but it lights what is often a dark path ahead."

This population is often ready to downsize or move into assisted living.Another is homeowners with a Low Financial Stability Score.

Nine times out of ten it will result in future business for their title company.

The wealthy developers I know will often ask for owner financing just because it's easier than tying up more cash.Cash is king and just because you have it doesn't mean you want to have it tied up.

Will depend on several factors like the type of property, type of tenants, your risk tolerance, other assets you own, your estate planning, laws where the property is located, etc.An LLC is a good idea if you're worried about liability in that as @Christopher Phillips said, any lawsuits would be limited to the assets of the LLC and not your personal assets (assuming you run the LLC appropriately and the corporate veil is not pierced).