You may be looking at only the value of an option as a financial derivative and not the value of exercising the option, the full value is not included.4.

They now come pretty close to the same values I would derive from recent sales, minus about 10% or less.

I've come across "credit derived" list brokers who can provide very segmented lists for delinquent borrowers at 30/60/90/120, but I wanted to see if anyone had success with this route.

At the very least he will not be a lender, he will be your partner and his money will be treated as equity so that he has ownership of some sort in the property.As a lender, any income he derives would be interest income and could not be offset by depreciation.

Prior to this, Oliver served as a mortgage credit analyst and a home price derivatives trader.

Your numbers won't likely fit in that profile, so you may need to look at private lenders instead.Tax Implications for IRA Borrowers:When an IRA uses debt-financing such as a mortgage to acquire property, the portion of the income derived from the borrowed capital is taxed as Unrelated Debt Financed Income (UDFI).  

That means it has to have growth for you to derive benefit.  

The Solo 401(k) also has the advantage of being more favorable for real estate investments using debt-financing such as a mortgage - as the 401(k) is exempted from a small tax called UDFI that an IRA would pay on the percentage of income derived from the borrowed money.If your intention is to have the retirement plan invest in leveraged rental property, I can pretty much guarantee you will find either of the checkbook plans to be much better tools.If you have qualification for the Solo 401(k), the exemption from UDFI on a leveraged property investment will be a nice benefit. 

The FHA will require that the rental income (with a market-derived vacancy of between 5-10%) from the additional units in 3-4 unit properties cover your total PITI+MI expenses (principal, interest, taxes, insurance, and mortgage insurance). 

The above examples are just for illustrative purposes, you'll need to find your own market derived rental , vacancy and cap rates.Good Luck!