The issue is then mortgage financing, at 4.5% interest at 70% LTV, you have annual mortgage payments of $27,888; which results in -$4,888 annually.I then wanted to run a matrix with some LTV and Cash-on-Cash assumptions to basically derive at a cap rate threshold based upon certain input assumptions...

In your eyes, would someone like myself be employable as a PM with experience derived only from my own properties the last 3 years?

This would solve all of your issues: you can arrange a direct deposit of the rent proceeds into your 401k trust bank account, you document all deposit internally as plan administrator, you get rid of the custodian fees and all the 'red tape' that comes with it, AND since your property is leveraged you would get rid of UBIT on the income that is derived from the financed portion of the property. 

I think most MHP investors realize one of the best things about mobile home parks derives from economy of scale.

In college I used to read about investing in stocks and and the other derivatives.

@Jesse HargroveWhen an IRA uses debt-financing such as a mortgage, there is a tax known as UDFI (Unrelated Debt-Financed Income) that applies to the percentage of the income derived from the borrowed, non-IRA money.This income is then reduced by applying the same percentage of the normal deductions such as depreciation, interest, property taxes, etc.  

That sounds like a derivative, not actual real estate.  

At the end of the year, the loan originator organization wishes to pay the individual loan originator a bonus based on a formula involving a number of performance metrics, to be paid out of a profit pool established at the level of the company but that is derived in part through the company�s mortgage originations.

After all it is a business for profit and participating and accepting communities should be allowed to derive some benefit for this privilege.

It can provide residual income long term and I derive great satisfaction reviewing any of my finished projects, so I wonder how good I can become in this?