My "velvet glove" approach would be to light-heartedly tell them it's getting too loud outside and it is time to buy a vaporizer.

Even slightly overpaying, means you have vaporized the "savings" of the realtor fees.3) Appreciation is good and we probably have a couple more years of it on the way.

It's NOT water proof, and it requires vapor under-layment AND padding, the other was integral and had all that.

@Vu Nguyen putting living area, which includes kitchen plumbing, in a garage will probably require cutting through the slab, trenching for plumbing, new concrete (including potential rebar doweling, vapor barriers, gravel, insulation, etc).

As of right now, my contractor is going to install a vapor area and call it a day after making the repairs.

I just put in $20,000 new sliding, $5,000 new electric box and wirings, carpet, water heater, new paints, new fridge, new vapor barrier and insulations.

Chances are there is no vapor barrier on the exterior side preventing moisture from penetration the block.

Yeah, it Has to have a vapor barrier behind it, even when installed correctly......crazy that someone would put it up without it.

Another misconception is that vapor simply vanishes into thin air without leaving a residue.  

I used to get calls all the time to convert a garage to living space and usually it was not allowed, unless the original garage was torn down.Garages are not built to be used as living space and therefore often do not have a vapor barrier in the slab, or the correct rebar, or concrete PSI.So your first step is to go to the City where this is located and ask them if you can do it.