As of today, I'm continuing to ramp up on the South LA region (near USC, Inglewood, Vermont-Square, Vermont-Slauson) as this falls within the budget range (less than $1M) of where I'm comfortable with.

Courses must be completed at an institution of higher learning accredited by the Western Association of Schools and Colleges or by a comparable regional accrediting agency recognized by the United States Department of Education, or by a private real estate school which has had its courses approved by the California Real Estate Commissioner.

I may be blonde, but that purple gives me some artificial intelligence ;-). 

You don't want to over-engineer/design your existing house because your house will be valued on comparables.For financing, you can look at regional banks/credit union or HELOC to tap your existing liquidity.

You can't search by region or interest first, and have to insert a keyword (which is basically just a guess on the terminology they use in their profile).

I will certainly shoot for one of these regions in retirement, and I would like to bring mobile housing to them even before then.

In addition and depending on the written terms, this may or may not include utilities.The rents paid by HUD are super desirable in a region like the DMV, however; I would caution you to take the necessary precautions that you would take with any other tenant, i.e. rental history, credit check, background check, and if applicable, employment verification.

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Regional and local banks might have you fill out a PFS and look at things like net worth, other obligations, etc. 

Try Regions bank I think they are all over the Southeastern Region.