Its not as bad a hit as a foreclosure.Even if they won't approve a short or a full short, your current lender might carry back a loan for some or all of the shortage.Trouble is, you don't mention any hardship.

I have been at MD almost 10 years now, so I hope that I could answer most or all your questions.

If you have not done a few notes on a one off basis then notes in bulk would be a real challenge especially if you are going to keep some or all in your own portfolio.

You may even be able to the introductory balance transfers to get all of your accounts below the 30% usage mark which is considered good (if you're willing to pay the balance transfer fees-usually around 4% right now, however a lot of cards will offer a no interest period for balance transfers that may defray some or all of the 4% fee).

As a disclaimer- people will from time to time hire me to coach (mentor) them through one phase- or all phases of the business.

It is rented and cash flows to us about 1250-2000 per year.Is there a way for us to force one or all of them to buy us out or to require the property to be sold.

It unfortunately is a very common misconception that most or all of the folks on the program have no income. 

If the Mortgagee agrees to satisfy their mortgage for less than what is due, then you are left as the titled owner provided no other or all other liens have also been handled which are superior to your interests.  

They use a "tenant manager" who gets some or all off his/her rent for providing the onsite management.  

The latter is certainly a requirement when you need to open the walls to update wiring &/or windows.From experience, 1912 era wall cavities would be devoid of any form of effective insulation.