Other than signing a document that says you'll live in the property what other ways does the government track that you live in the unit?  

All real estate agents log into a subdomain of MLSListings (pro.mlslistings.com) to enter and access listing information.The Silicon Valley Association of Realtors (SILVAR), Santa Clara County Association of Realtors (SCCAOR), and the San Mateo Association of Realtors (SAMCAR) control who has access to enter listing information into the multiple listing service and by setting standards of conduct, regulate real estate agents.

Fannie/Freddie govern conventional loans.  

Additionally, there are legal considerations which govern how the prepaid rent is held and disbursed.

Since it is a Federal Government program trying to encourage home ownership, they want to give first shot to owner occupants, investors come last.  

You should also study your state landlord tenant regulations.

Tons of advantages for these foreign companies, including local government's incentives.Brazil's recession plus Paraguayan Government's aim to turn the country into South America's China seems to be opening a niche for industrial development. 

Florida has some different regulations around this. 

You need to study your state landlord tenant regulations before you enter into this business to protect yourself and your tenants.

I was under the impression that since the policy was government underwritten  the rates should be nearly the same for the same policy