I'd learn the deposit status.

Incredible value delivered over many years here at BiggerPockets, and that's JUST on these forums, not counting 500+ BP Money podcasts, more YouTube videos, comments across the Facebook groups, and a partridge in a pear tree. 

I self manage, have material participation status and file on a schedule C.

Even facebook might have some good local groups for you.

AwesomeMake sure you try the Facebook groups for wholesaling and contactsI found them very helpful with due diligence on the contact and  reputation and  history

The hurdle you will run into is that a purchase money loan (mortgage, car loan, etc.) is a preferred status under the law and will take priority over other debts and claims against your assets.

Lots of wholesaling deals last week.In addition to what Dawn shared BTW, R.I.N.G is today and can be found on Facebook and MeetupR.i.S.E - Real Estate | Investment | Strategies | Entrepreneurship meets on 2nd Tuesday and can be found on Facebook and Meetup.Dealmaker has an annual conference and an expanding nationwide footprint plus a mastermind like group for all that meets on Zoom ever Wednesday at noon.Greater Richmond REIA and a few more can be found on FB and Meetup.I look forward to meeting you.

I think its far easier for the big servicing companies that own these mortgages to check on status than you might think..

Personally I like Facebook marketplace but I get about 85% flakes who either just aren’t qualified or end up no-showing to the showings.

If he likes a deal and wants to get into it, he would need to be able to fill out the subscription documents, which are ~10 pages of things like, name, address, SSN, whether you are using a Trust, LLC or other entity, and a bit of information about his financial status as required by SEC rules.