Unfortunately, the selling part is not going so well and we will probably end up losing money on the whole deal.

@John S Lewis  a few ideas, some easier than others...1) search lien records through the county2) check the system itself (panels and indoor hardware) for labels placed by the installer in case of service needs, pretty common, then call them up3) see if any neighbors have similar systems and ask them who they used, then call them up4) call local installers and ask whether they worked on that property5) looked up previous owners and ask them who installed, but check with installer about status rather than rely on the foreclosed party's representation6) Don't worry about it? 

@James Carlson, i'm late to this party but i've also been seeing favorable numbers for myself when analyzing 4bed house hack rent by room scenarios under 325, assuming i can get 600-700 per room. 

My broker tells me if two parties agree contractually that the seller will hold onto and not record the deed on a seller-financed deal that, no, the buyer cannot later compel me to record the deed.

My broker tells me if two parties agree contractually that the seller will hold onto and not record the deed on a seller-financed deal that, no, the buyer cannot later compel me to record the deed.

My broker tells me if two parties agree contractually that the seller will hold onto and not record the deed on a seller-financed deal that, no, the buyer cannot later compel me to record the deed.

party house?).

Owner Operated or 3rd party?

Every transaction is a chance for one party to not be in agreement with the other. 

Which will make for an awkward dinner party. 3.Wearing a safety helmet during a demo doesn't make you a sissy.