Have you physically seen the property yourself yet?

All said - Most lenders prefer replacement reserve greater than $500 and usually rely on an physical needs assessment to determine cost over a 5,10, or 15 year period.  

There's not a lot of physical resources in this part of the world so I'm glad I've found you guys to help!

As a result, I find myself with Bachelor degrees in Mathematics and Physics as well as a Master of Science in Engineering.

Then I'd present him with options, all of which involve his participation in some manner, whether physical or financial, and then hold him to it. 

Now back to the real, or at least more consistent world: drywall costs vary as to the unique nature of each job location, therefore comparing estimates without details is an exercise in futility. 

Exercise patience...

Rent indivual W/D to each unit-Parking Garage parkingCovered parkingprime spot parkingJust plain old charge for parking-Renovations Interior units upgrades Common area renovationExterior upgrades for curb appeal-Vending machinesIn common areas such as exercise room, pool house, laundry or leasing office-Trash pick up serviceIn high end buildings they have a service where you can set trash outside your door and for a fee maintenance will go around each night and collect it so the resident doesn't  have to carry it to the dumpster. 

Definitely a worth-while exercise.  

Although this is an expensive market, I wanted to start local, as I am a bit cautious going anywhere I would not be able to physically be there on a moment's notice.