"interior/exterior" inspection is pretty broad, so think about what that actually entails.Make sure you check fire suppression equipment (smoke alarms, extinguishers) as tenants love to pull those off the wall and throw them in a drawer. 

So basically there are some suppressed areas where prices can fall so low that that a bank will not even want to do a loan for it because the loan amount will not be enough to make it worth their while.  

Don't let anyone suppress you 

At the end of the day, your looking for that property that has deferred maintenance, thus suppressed rents, which normally means they are siloed from the market inflation till the very last minute before the market rolls over.

For it to work, we need to see new permits suppress to lows and remain at those lows as more and more of the population funnels into multi-family residences. 

@Jeffery Waicak  In my town, you can't have more than 5 unrelated people living in the same house under the normal rental property rules.  6 or more with with a full time staff member falls into another category and might have some requirements you didn't think of, like a fire suppression system. 

I often thought too the fire suppression was individual and not shared.I understand about the free time, I'm trying to simplify my life

Refigeration can be an issue, three dump sink, grease trap, gray/blackwater holding, screens over lights, fire suppression if you have fryers or stoves.

Gas will require a room with fire suppression included.Size and finish of the kitchen and appliances. 2, 3, 3-1/2, 4 bathrooms?

That said the "professional office" status in most cases suppresses the parking issues (again see zoning in your area) A great side note is that ADA renovations are treated very well in the tax code so often I have no issues in getting all the needed ADA Reno's done under budget.