How does section 8 criteria work as a landlord?

[Michael Dahl]

I have 2 duplexes in class C neighborhoods and it is harder than I thought to get them rented out (currently I have 2 units vacant, 1 is occupied and I am househacking the other).  I am on the fence if I should try to get the properties approved to accept section 8 housing vouchers.  My listed rents are in the average range for the market they are in.  With my original screening criteria I would require a tenant to possess a 600+ credit score, 33% rent to income ratio, and a relatively clear background check.  If I would get accepted as a section 8 rental property, what type of screening criteria can I do for possible section 8 renters? If any?  I am located in Minnesota.