This thought led me into studying about becoming financially free and building generational wealth.

Study the market.

Can they prove how long it takes to rent a vacant property?

To invest in Section 8 housing, look at areas such as Cleveland, Columbus, Cincinnati, and Dayton, choose safe neighborhoods, study Section 8 standards, analyze property types, and explore financing choices.

Esther Sullivan's 10 year ethnographic study on Mobile Homes, Manufactured Insecurity.  

I hope this insight proves helpful!

My suggestion is to study first the numbers / cities / markets and once you know your zones / cities of interest, look for people who can help you locally.

Then do everything you can to study that specific real estate niche and then start to partner of some deals to help you gain experience and confidence.  

So I self-financed the first draw, thinking that it would help move the project along, but that proved to be a big mistake because Delta stopped responding to me after that. 

Study the market.