@Greg Deane see if they have been in arbitration yet, if no you can assume that is a good probability that could happen if that does it would prevent you from selling, or only cash offers. 

If you own something directly in a major metro, and it is not too much of a financial pinch to prevent you from steadily adding to the portfolio in a less expensive area, keep it.  

Which is what prevented us from getting a loan through that site. 

A borrower could also have a prepayment penalty or lockout that is preventing them from refinancing now.

It does not prevent the owner from a subsequent claim against owner if there is proven negligence.  

If you want to prevent them from selling to someone else, you could file a lawsuit in the county where the property is located and immediately record a notice of pending litigation (lis pendens) with the county clerk.

Are you confident that they have processes in place to prevent future mistakes?

I would really like some feedback on what realistic numbers look like for a duplex house hack, as I am struggling to find that unicorn property where everything fits perfectly and I don't want unrealistic expectations prevent me from ever pulling the trigger.To set the stage, I have been looking for multi-family properties for me to house hack into in the Maryland area for a few months.

Neither prevents you from splitting profits 50/50, but it prevents dozens of other problems.If this is impossible due to egos, trust and whatnot - then try 60/40 or 51/49 partnership.

Cara Lonsdale His loan would prevent this sale.