@Joan S. wow, great research and outlining pros and cons.  

@Philip Marzen The book by Chad Carson called "Retire Early with Real Estate" touches on this subject a bit!

Any videos or books yall could recommend on the subject would be noted, and any info yall would have on what it takes to build a unit would be noted as well.

The problem with refinancing within 6 months is that the "subject home" is a comparable recent sale.

The following blog article outlines the issue and provides resources to make your voice heard.https://www.biggerpockets.com/...

For HomeReady loans, financed properties owned by a non-occupant co-borrower that are owned separately from the borrower are excluded from the number of financed properties calculation.The following property types are not subject to these limitations, even if the borrower is personally obligated on a mortgage on the property:commercial real estate,multifamily property consisting of more than four units,ownership in a timeshare,ownership of a vacant lot (residential or commercial), orownership of a manufactured home on a leasehold estate not titled as real property (chattel lien on the home).Examples — Counting Financed PropertiesA HomeReady borrower is purchasing a principal residence and is obligated on a mortgage securing an investment property.

Or they could cherry pick from there subjects that they were interested in from the OG, Rookie, etc... 

I would suggest setting up some key word alerts as well to help you follow subjects you are interested in.

It uses the rents of the subject property.

You just outlined a much more direct approach, and I appreciate that.