The “buyer beware” philosophy is fine for commercial transactions, but taking “advantage” of home owners when they’re most vulnerable and lack market sophistication is something no right thinking person wants.  

Those things eat your introvertness & lack of sales background for lunch.

Their income is only 3X rent, they lack credit history, and the household is much larger, which could result in more wear and tear.

I usually end up with a list of buyers with down payments but I don't have any more inventory for lack of inventory (capital).

When you are new, you can be your worst enemy (due to lack of knowledge, ego, and FOMO).If you are new, do you have a person who tells you that some deals suck?

It is not really apples to apples, but generally speaking the more money invested the further ahead you will be eventually in the future, just because your compounding base is higher, regardless of where the money comes from - ie, 4 300k properties are 1.2 million on property, which is double the 600k property.

Communication is lacking.

I think the biggest roadblock has been the lack of true testimonials of successful people in these programs.  

They also want a priority lien on the property.It sounds like you are looking for someone to fund your down payment, I would be looking for an equity partner over debt as nobody likes to lend money in insecure positions, especially when a borrower lacks skin in the game.How much are you planning to come in with yourself?

What problems do you face as investors that still lack good solutions?