I would prefer to use a listing service to place on the MLS.

A few tips:Make sure your friend sends an authorization to the underlying mortgage servicer allowing them to share account information with you in perpetuity.

The third-party Note Servicing company would take the buyers payment and pay the underlining lien and pay the wrap seller the difference.

Most brokers go to Spring EQ or Figure, but i'm sure there are some more aggressive banks or credit unions out there, or perhaps an 'online' bank. Any replies would be great and much appreciated!

Personally, based on the demand for CPA services in my area with any level of specialty, $750 is fairly low. 

I would recommend a very through background checking service.

Now they spam us on a regular basis trying to sell the same service, but the data at which we are able to look, is no more accurate.In the U.S.A. markets were we dabble, I find them to be a useful service.

LES (Leave and Earnings Statement):  This is the military equivalent of a pay stub and provides detailed information about a service members pay, allowances, and deductions.   

One aspect is simply that a listing agent can no longer list buyer's fees in the listing, if I heard correctly.Would it work for a non NAR and non MLS related business, to be formed to allow listing agents and buying agents to list their services and their fees for those services?   

As a listing agent who has helped many investors sell off their inventory, I waste a lot of time weeding out "buyers" who really think I must submit any tentative offer they put in a text, email, verbal, or using non-binding letters of intent.