Re-zoning SFH to Duplex

[Rick Sheldon]

Hello,

I have a PA in place for a house in Michigan. Below is the financial information (table on the left is for while I live in it and rent out the larger unit; the table on the right is for after I move out and rent both units after the FHA owner occupancy requirement is fulfilled):

My question is related, specifically, to zoning. The home is currently zoned as a SFH with only one meter for electric. The seller mentioned that the municipality is aware that the building has been rented as a duplex for several years, with no issue. They also claimed that rents for the two units were $900 and $600, when they will more realistically be around $750 and $550, respectively, so I do not particularly trust what they say. (the offer is contingent on them producing proof of rental income, but they have yet to produce it).

Any and all advice is appreciated!