Then he completes the application and his income is way low and it says he is self-employed.  

Many times my contactors call for big orders from Home Depot or Lowes so I can pay with credit card over the phone.Is there a way to get an account with HD or Lowes so they can put supplies on it?

Cash offers are at the top of the pile, then large down payment conventional, then low down payment conventional, then fha/va, then fha 203k/rehab loans are at the bottom.

I dont know why it appraised so low when I bought it, i was just happy to get a better return.

Hello I'm Steve plumbing and heating contractor by trade 17 years exp , I do project management , contracting , for flips and rentals .

We tried sending out a large amount of low offers and received the same results.

Finding a lender that has a low or no seasoning period is something to track.  

Though - the main reason people use the BRRR Strategy is because it allows you to do a "no or low" money down transaction.

What are the strategies you use to get the low rents to go up?

It's a traditionally very low income neighborhood.