Purchase price: $100,000 Cash invested: $20,000 Commercial building used to be a tire store, currently a Carquest auto parts store operating.

I’ve found better quality hoods, fans, and lighting fixtures cheaper than the big stores or than my contractor can find them.

As far a books on management go, check out Brandon Turner's book on managing properties which you can find here: https://www.biggerpockets.com/store/managing-properties-digital as well as the Landlord Survival Guide by Jeffrey Taylor

Some of the larger expenses-Interior/Exterior Paint, Storm shutters for a few of the front large windows, added additional cabinets to one unit,  New refrigerator from Dent/Scratch store after old one died,  Laundry units that tenant pays +$50/mo for etc. 

Treat this the same way you would any other type of new business, whether it be a grocery store, auto repair shop or landscaping business. 

The area is upcoming and near to subways, buses, stores and a major hospital.

"Do you want to buy that at a garage sale being sold directly by the owner, or would you rather buy it in a store, sold by a salesman, backed by some kind of guarantee?

@Troy S.I would say it depends on your level of connections to businesses and expertise in dealing with different businesses (e.g. logistical/legal/practical issues leasing the space to a restaurant versus convenience store).

I've been having some difficulty finding a bank that would offer an FHA option for a mixed use property (2 residential, 1 store/office).

We have a great housekeeper and we keep the supply cabinet well stocked for her to replace consumables and store cleaning supplies.