The inspector estimated it could cost anywhere from 2k-10k to fix depending on the moisture damage. 

Moisture is trapped in the wall which can create mildew/mold issues inside plus it decomposes the brick itself, and rather quickly too.

You need to figure out the root cause of where the moisture is coming from.

AC systems condense moisture first, then cool the air if there's any capacity left over.Some systems may be limited as to how low the suction side pressure (and associated evaporator temperature) can go.

Moisture in ceiling; subfloor damage.Moisture in ceiling; staining and previous repairs.Moisture in baseboard and floor.Moisture in ceiling; staining.Moisture in ceiling.Roof replacement; address moisture and leaks.Exterior inspection; identify and fix moisture sources.Fix moisture damage.Electrical system overhaul; ensure safety and compliance.Temporary housing costs for tenants during repairs. 

How about those syndications mate...A Class properties, A class tenants, A class areasThe property we sold was located in a good area.43612.Close to our office with many homeowners.Blue collar working class folks.Good people.High comparable sales which show's consistency in market value.I personally own 3 houses two streets above.Our rehab was exactly what is required for the area and tenant demographic.Not overcapitalizing to keep long term Capex lower.When exiting, I always suggest sprucing up a bit for higher dollar exit.Below are photo's and a basic scope of work of what was delivered along with current comparable sales.Thanks   i have done what 150 to 200 fix and flip fundings in Ohio.. probably 80% have basements you talk to anyone about basements in Ohio and basements in Ohio leak/have moisture full stop.. its up to the owner to have them inspected quarterly and remedy wet spots or mold at the first sign..

Easier to deal with now before fixtures go in than later when your floor sags from trapped moisture.

A good inspector should have a moisture meter and a thermal imaging meter.

It helps keep moisture from coming up through the concrete and into your basement.

(I have had tenants turn the AC off when they move out or the heat in winter)- We require they have someone check on the property if they leave it for more than 5 days (This is to make sure there are no water leaks or HVAC issues that lead to problems while they are gone)- No businesses can be run from the property (to prevent day care, laundry services, gambling, drugs or who knows what)- We specify yard care includes week spraying and cleaning up sticks less than 1" in diameter (otherwise tenants think yard care is mowing only)- We state that tenants utilities can be used for routine maintenance or repairs (I once had a tenant complain the roofers were using his power for their compressors)- We have a whole section on mold stating that mold is naturally occurring and results from excess moisture.