There's so much important info you can learn about neighborhoods (and individual properties) that simply cannot be conveyed by peoples' opinions, photos, or even video.As with all parts of due diligence: although you can (and should) seek the input of experienced pros, at the end of the day, the due diligence buck stops with you.Good luck out there!

My mother unfortunately, became a widower last year and was left with a few properties that includes 2 homes that maybe beyond repair and empty lot.

We recommend you get management contracts from several PMCs and compare the services they cover and, more importantly, what they each DO NOT cover.

The county in some way is actually more important. , other factors to consider would be are there major universities nearby?

@David NinoThe most important thing it to confirm that the tax return is correct and properly filed with you taking advantage of deductions/credits available to real estate investors.I don't have information on how many state tax returns you are filing and how many properties hold those 23 doors(1 apartment complex vs 23 sfh's), I would have to say that is one really competitive price.

I have Rehab and hold 2 properties and rehab / flip 3 including a duplex.

Does your refinance include a return of capital at that time? 

It may be turnkey, but when was it built and why isn't the turnkey company providing you with a home inspection, including sewer, with the package?

That's an important piece to know before you look at managing for others. 

@Mikal MAxim   If your debt to income ratio including your rental income on the subject property is under 50% and you have good credit you would likely qualify for a conventional loan.