Most people don't qualify for that relationship.The seller financing will not show up or affect the credit score.However, when applying for a loan at the bank or especially a Federally Guaranteed loan, they ask on the application for ALL Loans, whether  or not it shows on a credit report.

Still can be very beneficial for a new investor but personally I think not as good as a service as they had with their exclusive listings where they had inspections already done, rent rolls available, and you can complete the entire offer/acceptance via their platform rather than being handed off to an agent. 

Very good resource for getting set up with STR property managers, cleaning services, realtors, lenders, etc. https://www.getchalet.com/

If you did not like that experience, maybe you should try a smaller company to get a more personalized service experience.  

You can put a mortgage into a "trust: without triggering a due on sale but again contacting your bank/lender is the best route to avoid any issues.Some banks/lenders or servicing companies change guidelines and even a trust may require other paperwork but the attorney usually facilitates that to be safe.  

Owners mistakenly ASSUME all PMCs offer the exact SAME SERVICES and PERFORM those services EXACTLY THE SAME WAY, so price is the only differentiator – so, they often select the first PMC they call or that calls them back!

They're driving demand.Communities will use that tax revenue to increase the overall appeal by providing more services, improving infrastructure, etc. 

You do not want to lie on an application, that is mortgage fraud.

@Michael Klinger  As others posted, SoFi and Discover personal loans are good options and I've used them in the past.  2-3 business days from application to funds in my checking account. 

There is no Due on Sale Police, the loan is serviced by a Servicer who is paid just a few dollars per month to service the loan.