Personally, I think you are in for a very difficult time.
While it may be true that a single water damage incident will dry out eventually and not leave mold growing, you don't know that for sure in any given incident.
If water did get into the stud wall cavity (and I think it likely), there could be a very long time period before this dries out and mold colonies could be forming which may blossom every time there is a rise in humidity.
Flooring is a special problem in itself. If the floor really is "boards" these may dry without mold growing. Of course, they may also warp.
If the floor is particle board or plywood, there could be a real mold problem plus delamination.
The carpet at least can be cleaned or in the worst case replaced.
What I fear most is that you won't know about some of these developments until long after the tradesman has departed the county. Then what?
You may want to enlist the aid of a lawyer *right now* to ensure that your rights are protected.
A few links which may be of some general interest:
Jim