Currently own a coffee do and this will be my first investment property.

They'll come do a site survey and make sure that you have line of site to whatever repeater they have nearby. 

Mom and son will be living in the apartment and kids will be there on the weekend... son income alone does not qualify but his half brother who own restaurant nearby is willing to be on the lease..son works at the restaurant as well.. combined son and half brother income will qualify... should I be worried about that since half brother will not be living in the apartment and even though he will be on the lease?

Share examples of similar setups nearby (as this is indeed common among small multis)"Eat dirt" - you eat some dirt (or crow or what-have-you) and you have this installed. 

I liked living 5 minutes from ASU's campus as that meant good bars and restaurants were nearby.

Local meet up in Mooresville at Urban Coffee this Friday at 9am to talk some real estate and just out faces to names.

My wife is now the PM and we have wonderful tenants in the duplexes, and three years ago we scored with a great apartment building in a near by town; we refer to it as "the last great deal in the PNW". 

Are there any amenities nearby? 

I’m concerned that I won’t be able to have two mortgages under me personally to maintain my home in Detroit and invest in another property nearby.

If they break a coffee mug, want to borrow a book, just let it go.