Like Greg mentioned, I would be concerned with his/her responsiveness while I was living there. 

Depending on your current living situation, you could do both. 

Check local regulations on maximum number of unrelated people living under 0ne roof. 

Live there for a year while you fix it up.

@Nathan Frost  Ironically, I did the majority of my real estate investing in Texas while living in Metro Detroit, and you are doing somewhat the reverse.I didn't want to get too negative, but suffice to say the City of Detroit* is a very tough market. 

Here are the common exceptions:Relocation for Work: If your job requires you to move a significant distance from your current property (usually over 50 miles), you may qualify for a second FHA loan near your new workplace.Increase in Family Size: If your household has grown, and your current property no longer meets your family’s needs, you may qualify for a second FHA loan to purchase a larger home.Co-Borrower Separation: If you co-signed on an FHA loan and are no longer living in the property (e.g., after a divorce or separation), you may qualify for a second FHA loan for your primary residence.Non-Occupying Co-Borrower: If you were a co-signer but did not occupy the original property, you may qualify for another FHA loan as the primary borrower.Important Note: FHA guidelines typically require you to demonstrate that the current property will not meet your needs or is no longer feasible as your primary residence.2.

Would I be able to purchase that if I tell the lender I have the intent to live in there and be able to put down 5% and if so what do I need to tell them about the current primary.

Tenant was acquired with property upon closing(they have lived in their unit for 2+ years with on time payments).

The county health department may have ok'd it, but that doesn't mean whoever lives there isn't going to get cancer from it and sue you later for knowledge.

I am new to the real estate game and got my foot in the door by purchasing my first property as a live in renovation.