The renter pays taxes and utilities.

Do all units have separate utilities?

I would pick a realtor who owns rental properties and someone who it's too new in the business or too old.If a realtor owns rental properties themselves, they automatically have experience your buyer is going to want in a realtor. 

I know some investors are able to utilize their license to save themselves money, but unless that's your plan I don't know how useful it is. 

However, you might be able to go to your local AGC (Associated General Contractors) to get referrals or maybe utilize HomeAdvisor, if you determine that you need to let your contractor go.

Whether it's reaching out to certain people, analyzing a number of properties, or even picking up a new book.What I've heard from a lot of successful people, whether in business or sport, is that motivation means a lot less than discipline (which, I suppose is another way of saying persistence!).

They're even paying the apt's utilities.

Pick your location, find those properties within your budget (make sure the numbers work as a potential investment opportunity), and shop around for a lender with the best value during your search (ask local investors you know who they use).

@Tony Roddenberry,Quick and dirty answer to your question.If you were able to take the roof off your dwelling structure, pick it up and turn it upside down, everything that falls out would be personal property (free standing appliances, furniture, area rugs, are examples) that could be depreciated over five years. 

Try picking a number yourself and sell FSBO.