I have their SSN handy, collected as part of rental application with their signature on allowing me to report to Credit Bureaus on unpaid rent/dues.

With regard to scaling, they are not reported to the bureaus (at least the products I am familiar with are not).

Debtor must clearly phrase their request to obtain: the source of a debt and the amount a bad debt buyer paid for plaintiff’s debt; how amount sought was calculated; where in issue a list of reports to credit bureaus; and documents conferring authority on third party to collect debt.Documentation of the creation of the debt with your collection agency.Under FDCPA Section 809 (b), you are not allowed to pursue collection activity until the debt is validated.

If you (or others) have had a great experience with a platform that both takes the payments and reports to the bureaus, I'd be good with that.  

Various collecting agencies will report to the credit bureaus.  

I would call the concerned parties and make sure you gather paper trail.. call the credit bureaus, they will give the advise you will need to get the flag removed

. - Some credit bureaus and services (like Experian RentBureau or Esusu Rent) offer alternative credit reports that include rent payment history, utility payments, and other recurring bills.

Even though WE are NOT originating a loan here; it would be the EX-Husband who would be "originating" the Loan (by taking back the Deed of Trust and Note) in order to SELL his 50% interest in the house, the TIE IN is with our BUYING or INVESTING in the purchase of the DOT and Note to generate CASH to him, and CASH OUT to Her is wherethis becomes a "Gray Area" of whether it violates any of the CFPB Consumer Financial Protection Bureaus requirements and could be re-characterized as a high cost LOAN IN DISGUISE ALTERNATIVE THINKING We are thinking a better way to go here IF the EX-Wife agrees; it to SELL the house NOW, pay off the EX- Husband and enter into a 3 year LEASEBACK with the buyer of the home. 

The credit bureaus will sell your information when you do a hardpull and you could receive 50-100 unsolicited calls in a couple of days... what we always recommend is to "opt-out" of this solicitation, do the softpull to get preapproved, and then when you find a home you can do the hardpull and not get bombarded with calls. 

True...if they don't report to the bureaus.