Heck, my daughter worked for a foundation company that the Gaines owed $40K to way back when they first started out.

At least know the turf of the principal players!

Property A No of units 4 Purchase price 28,000 Renovation costs Cost base 28,000 Downpayment (20%) 7,000 Scheduled Gross rent 13,500 Less: Vacancies-1,620 Less: Property taxes-1,158 Less: Utilities (water, sewer)-479 Less: Any other exps (gas) Less: Insurance-500 Less: Property management-1,500 Less: Repairs-1,350 Net operating income 6,893 Debt service at 7% (principal and interest)-1,802 Annual cash flow 5,091 Min mthly profit per unit ($100 p/m) 4,800 Other info GRM (cost/rent) 2.1 Cap rate (NOI/cost base)24.6% ROI (after debt servicing)18.2% Cash on cash ratio72.7%

If you wrap a deal, that part of principal that goes to the underlyine mortgage is not yours, you break that out, but any interest override is your interest income.You know what they say about "ignorance of the law", and some will be made as examples that's for sure....will it be you?

Wait until they vacate to worry about the security deposit claim, they already owe the rent and that will eat up their security deposit. 

But, it is likely the HO is also behind on the 1st, and would owe back payments and penalties, etc.

If you said yes, and benefited, you owe him.

You just need to use/transfer at least as much as the sale price and the loan amount (or was it principal). 

The only two we didn't purchase were those that owed 5 times the value of the land in taxes. 

Probably, but if you are evicting a tenant they likely owe you rent and the amount of the rent will exceed that of the deposit.