Balancing that with wanting to do something to maintain affordable housing for those in mid to lower income brackets.  

Which will also depend on the neighborhood.You want to, "rehab/maintain to the Neighborhood".Most investors go overboard on their first rehab and waste a decent amount of money.

If I understood your reply correctly.

@Lillian Pintaro - you are correct for high end MFH here. 

No income statement,  no balance sheet, nothing that can give you correct financial picture. 

@Nicole ShoafYou are correct and have equity locked up in those units, a good lender can give you options on HELOCs or other loan products that could help get some equity out without selling.

If it's on your credit, you are on the hook for it.However, it shouldn't effect the loan process too much, a simple Letter Of Explanation should be able to get the job done with the correct investor. 

Asking in the correct forum will get a better response.Read the RULES!

Once you build it correctly, you can offer it to other investors as a service.

It is a good course.Doing PML correctly is a lot of work but can be very profitable if done well.