not sure if it's the same elsewhere but we've lived in areas where existing homes that were used as rentals didn't increase in value as much as owner occupied (even when the owner went to sell and threw a ton of money cleaning the place up). that might be something to check on w/realtors local to the property.
management companies-REALY research them, and make sure there's an iron clad provision in the contract w/the company that they MUST an inside/out full visual periodic inspection of the property to ensure it's use/condition-with them on the hook if they don't and long term damage is discovered.
a friend was SOOOOOOOO thankful her contract was written up this way-police raided the place and found that the high credit scoring/great background check tenants the management company had sworn by had made a bedroom into their own personal illegal grow room-apparently the management company hadn't done the periodic checks b/c when an evaluation of the property damages were completed it was discovered that the hardwood floors throughout the entire home that were very visibly warped (total loss) had to have been subjected to months and months of slow leakage from the indoor drip irrigation system the tenants installed. between replacing the floors, fumigation, wall/base board repairs, drywall (grow lights suspended from the cielings made big holes), paint.....tens upon tens of thousands in damage..........all of which the management company had to pay up on (so friend did not have to submit to homeowners and jack up the rates on both the rental and her then existing home-she opted to move back in when the repairs were done and get rid of the other home).