They keep us at mostly current rents, where we probably wouldn't raise that much without their guidance, so likely pays for itself. 

Also try real estate agents .Honestly raise your asking price , you can always go down 

Are there other newer condos being built in your area that might lower your rents or raise them? 

Now you can ideally monetize it's sell price with the added premiums of turn-key and seller financing, and as completed raising the sale price significantly creating sizable profit.

That will raise the eyebrows of tax people and zoning and they will come knocking.Neighbors will often be savvy when it comes to STR's and they will call the city.

Some of them will make it to a higher income bracket, probably most will not in any material manner. 15 cent an hour raises don't really make for much investment income.

The attractions in Detroit (casinos, stadiums, Fox Theater, Bell Isle, etc) pull the middle class from the suburbs for a few hours, but they go back to suburbia afterwards because they will never live/raise a family near downtown.

So, raise the purchase price by $10k so you net the amount that you wanted. 

After negotiations, we managed to raise the appraisal to $166k.

Companies also use strong balance sheets to raise debt and equity and acquisitions.