A notarized letter of authorization is required if a person other than the owner applies for registration.

There are options like the Detroit Land bank Authority for City of Detroit Multi-family dwellings however as I previously stated you will need local help with this but if you commit it can happen and you can end up with a really great and a significant discount. 

For that the new owner will have to show proof of purchase to the Housing Authority.2) The agency managing Section 8 will honor the previous the inherited contract and the landlord will have to carry it through term.

@Fred Castro How does the amount paid by the housing authority compare to the fair market value? 

We got the housing authority agreement and new lease agreement that they paid all utils.

Purchase price: $25,000 Cash invested: $300,000 Sale price: $715,000 We acquired several abandoned and functionally obsolete duplex buildings from our city's land bank authority.

Both units are subsidized by the housing authority that pays 80% of the rent and they are below market rents (negative cashflow currently).

If you were to go with a bank who has delegated authority and does not have over lays you will be fine.  

It is a recorded land contract, which gives me full authority over the properties.

If your business model depends on whether or not the enforcing authority has the resources and political resolve to pursue and catch you, there is a chance you should be reconsidering your business model.The fact that you are questioning the moral implications of this pursuit is a good indication of your integrity.