Naturally, I can't tell if the results still hold true as I am sure a lot of banks and lenders have changed their rules.

Thanks for the alternate options, was thinking maybe a stager might have one.

I agree with Account ClosedTake this form 1003https://www.dropbox.com/s/lgtn...That is a standard mortgage pllication for federal mortgage applications.2 years tax returns.That should be enough for a conversation.DTI - Debt to income: big deal in mortgages.See http://www.fhahandbook.com/debt-ratios.php``````````````````````````````````````````````````````````That said, in OK land contracts are a good alternative to a mortgage.https://www.ok.gov/OREC/documents/Seller%20Financing%20(11-2015).pdfThe link above is a Seller Financing addendum for OK.I love OK for investing.

Alternatively, what is the best practice for calculating this rate from raw data?

When he or she continues in possession, in person or by subtenant, of the property, or any part thereof, after the expiration of the term for which it is let to him or her; provided the expiration is of a nondefault nature however brought about without the permission of his or her landlord, or the successor in estate of his or her landlord, if applicable; including the case where the person to be removed became the occupant of the premises as a servant, employee, agent, or licensee and the relation of master and servant, or employer and employee, or principal and agent, or licensor and licensee, has been lawfully terminated or the time fixed for occupancy by the agreement between the parties has expired; but nothing in this subdivision shall be construed as preventing the removal of the occupant in any other lawful manner; but in case of a tenancy at will, it must first be terminated by notice, as prescribed in the Civil Code.5.  

If no credit score, you can still get an FHA loan using alternative credit, such as rent payment, insurance payment, mobile phone payment, utility bill payment, etc, but you will need to find an FHA approved lender who will accept alternative credit. 

Appreciate any insights into alternative financing or input if what we have in place is "ok" for this type of property.

Do you have an alternate source of financing?

OR the alternative, take some appraisal courses and learn the methods. 

We have only purchased apartment complexes thus far (1,500+ units), but have strongly considered alternative investments like mobile home parks, as long as the numbers make sense.