Usually, a 3 bed 2 bath will rent a lot faster than a 2 bed 1 bath etc. 

One lot has a 2 bed and one bath cottage that was an existing STR. 

That seems low with the 5 units and storage you mentioned unless they are 1 bed units. 

Make sure any lease agreement you use complies with Arizona's landlord-tenant laws, including required disclosures (like bed bug information, for example).If you're unsure, consulting with a local real estate attorney to review the agreement can provide peace of mind and ensure you're fully protected.

There are 3 different types of units, studio, 1 bed, 2 bed.

As eric pointed out, someone who lives in Phila will have to be registered as a manager of the property to obtain a rental license - usually a PMPersonally if you're looking to target SFH I would recommend: Roxborough (for 3+ bedroom - there is a large saturation for 1-2 bed apartments in area), East falls, E and W Mount airy (need to be proficient in neighborhood to know where the good and not so good blocks are, and far NE philly.

It’s a 3 bed 1 bath, approx 900sf house.

There are more factors than just the community (#beds, level of theming, location to the amenities, style of home (single family, townhome, condo) and others) But I would strongly advise to stay within some of the same communities you mentioned like Storey Lake, Windsor Hills, Championsgate and a few others if cash flow is your goal.

Compare apples to apples(SQ FT, bed/bath, layout, etc). 

I was thinking this might work on my property in Redding and can be adapted to a shared housing project for seniors (though I'd want rooms large enough for bed, bath and seating area)  It's my understanding that it is considered a SFR with seperated bedrooms as far as planning.