SBRs and suppressors are both legal in MI with the NFA tax stamp. Any pistols must be registered with the Michigan State Police. SBRs under 26" OAL must also be registered as pistols, but this affords them the advantages of a pistol as well, such as carrying the SBR loaded in a vehicle, that you could not normally do with a rifle.
There are a lot of decent neighborhoods around Auburn Hills. You can live south of Auburn Hills and you'll be in a suburban area, or you can live north of Auburn Hills and be in a more rural area with more property.
As for rent, what are you looking for? Just yourself, a family, want to live in the city, want some land of your own?
Look at some of the
rental listings on Zillow and you'll see that you're looking at roughly $1 per sq. ft. in the Auburn Hills vicinity.