There is a lot of information on BP regarding being a private lender and outside groups taht have a lot of support in this space.

You could get a loan from a local bank or private lender to fund it

The client can distribute proceeds through a private agreement without involving the title.

Class C/D neighborhoods with both Section 8 and private payer tenants.

Private investors want to invest in deals they believe will be profitable.

Also, if this is something that you are looking for in a hard money lender, you might want to look into more of a private money lending model verse anything else. 

I'm mostly focused on more passive investments moving forward: syndications and private lending to known reliable entities.

Plenty exist for private lenders (which is what seller financing is) and can track payments and am tables and also do automatic electronic withdrawal (ACH debit) which helps improve the likelihood of getting paid promptly each month.

However, the average lifespan of companies is 10 to 18 years, so every private-sector job your tenants have will eventually disappear.

That may impact the amount you have listedYour most advantageous route for financing will be seller carry or finding a private lender.