I imagine the only way it would be possible is to do the bulk purchase in cash, sell off a couple and then put debt on them?

It's the concept of buying the debt attached to the mortgage rather than buying the house. 

What is anticipated legal costs?

It may be a tough pill to swallow if you feel you’re totally right, but you may be surprised at the LEGAL opinion rendered by counsel.  

BTW- it has a 10 yr track record.2) Our opportunity debt fund with two classes.

Maybe they've been burned by landlords in the past and are being very careful.You can legally reject them based on personality, facial tattoos, body odor, or other factors, but you better make sure you can prove that it wasn't based on any protected class like race, religion, familial status, etc.

We buy at a discount and pledge our legal right to collect the debt (a collateral assignment agreement) as the collateral for the private capital loan we take out, which is backed by the value of the real estate securing the 1st loan.  

I am about to buy my first property in Ohio and I would like to gain as much information as I can in regards to the different legal issues of which I can face in Ohio.

. - I will ding their credit such that all credit cards and other debt will cost them more.- I will keep their security deposit for funds owed.- I will do my best to garnish future wages until their debt to me is paid in full.This has worked 100% time so far.  

(income = 3 x monthly rent, Debt-To-Income, etc. can still be used!)