If you are looking at Student Housing, check out posts from @Will Gaston, he's been around the Student Housing block and then some.

"The 24 months of residence can fall anywhere within the 5-year period, and it doesn't have to be a single block of time.

Now, that being said, we are still seeing vanilla ho-hum SFRs not only get accepted, but the completed report turned in, pretty fast (almost like they are taking a full appraisal fee, and just f-ing copy/pasting from the refi appraisal they did for the ho-hum SFR three blocks down as part of the refi boom with the same bedroom/bath count, ahem, cough cough, excuse me while I clear my throat).

Especially if you live in an area that gets wind/hail/ice damage. 

If his numbers are less than you paid, then you can ask, but I don't think you should have any expectation of getting refunds.You are allowed reasonable actual damages from the delay, but if you didn't get revised timeframe from added work it'd be real easy for him to layout five months worth of labor on top of the original timeframe and attribute it to changes you requested.This sounds less like, "I overpaid" and more, "I didn't manage".

In addition to losing your deposit, you may possibly be sued to either perform or for damages.

Ask the PM for photos, inspection of the unit immediately before unit was rented to current tenant (so you can assess damage on their exit), a copy of their last lease, contact information for each occupant, emergency information, their application, job information, and how they pay--on line portal, by check, cash, pick up by PM or ?

Does the house already have noise-blocking improvements like windows? 

You can also have an attorney review the matter (and if they agree) draft a letter to the HOA of your intent to sue, including damages.

Baltimore is probably one of the few cities in the US that has blocks and blocks and blocks of abandoned homes.