Help! Window leaks

[Dave M.]

So I recently bought my first property, a 2/2 condo located on the 6th floor of a 6 floor building in Miami.

When I purchased the unit, there was extensive damage to the walls and floor directly below both bedroom windows and the balcony.  I figured it was water leaking through the window frames / balcony frame.  Someone who works for the building association told me they have seen the issue in other units as well but it is NOT the associations responsibility, and it's crucial to make sure I REALLY get it fixed before renovating / repairing otherwise the damage will occur again.

I am trying to get a window expert to come out and take a look and give me an estimate but every place I call says they only replace windows, they do not repair.  So my issue is where to go from here?  What type of expert can I call to come look at this?  Does anyone have any experience with this?