The tenant will most likely talk nonsense and show the judge precisely who they are.Send the judgment to a collection agency, along with all supporting documentation.

So B2C is out, but perhaps B2B might be an option (e.g providing a streamlined solution for all of the major mortgage servicing companies for collection of payments.

It is much harder to find a 2nd lien lender on an investment property and, even if you do, they are going to have maximums on the collective loan to value between both liens.

The idea of branding is great I think and allows guests to collectively remember your properties. 

Collect money, not properties.

Sometimes it can be difficult to collect and some landlords will keep any unpaid utilities out of the security deposit, though CA is one of the trickier states to do this in.

We have a ongoing list of each along with their fees and what state they are licensed to collect debt in.

For a relatively "safe" creative financing, one needs serious reserves (lots of moolah) and the ability to sell or refinance quickly when one of those "hiccups" occur.The gurus usually collect a large fee, from people who have neither money, reserves, nor experience.

Quote from @Andres Lasaga: I am in the process of selling a property to the tenant I have been renting the house for 4 years.I want to outsource the promissory note collections and reportsIt would be only ONE property, for now, any recommendation of a company that can manage the collections and reporting?

Eviction costs surged and so landlords needed to increase rents to deal with vacancy and collection loss and increase their screening standards.Then the eviction moratorium.