Should I ask if wall was inspected for moisture?
I agree, checking for the cause of the problem, including moisture in the wall, seems logical. In fact, without checking it could lead to dryrot or mold. 

I think I’d email them again and ask if they found dryrot or mold and let them know that if you don’t hear back this time, you’ll take it to the HOA. No response, then I’d ask the HOA.