Also, you'll need to figure out where to invest: Macomb County has 27 municipalitiesOakland 62Wayne 43City of Detroit around 183 residential NeighborhoodsThey can all be ranked as Class A, B, C or D. 

There is passive pockets, there is Aleksey C. on linkedin and others who talk  more about syndications as well. 

But right now, I'm stuck on if I should:(A)sell and buy a new place (B) live here another year/save more or (C) keep as a rental and buy a new place. 

The market you are in, is a C market and can’t support that business model.With the above said here are the options I would seek outA.  

C, properties wise, bitcoin has all of the properties that make up true money.   

@Brody Veilleux what balance are you looking for between Class A/B/C/D properties and ROI?

I  own a stabilized, class C portfolio of 200 or so single family rentals here that I self manage.

@Clifford C Toth No, I don't rent them furnished, although in my market you can get an extra $50/BR for doing so.I have a 3rd party do the lawn 2x/month.

., noting that there’s no A/C, which is an rare amenity in our climate anyway).

A lot of investors prefer to stay in the C class because that is where you get the best cash flow.