ransley wrote:
....
No[t] only should you have the plumbing fixed, you should insist that all
of the sheetrock in the dining room be replaced -- ...
Don't let the mold get started....

There is no reason to replace all the sheet rock just to do so. You
dont need the extra mess, just fix what shows damage. A recently found
leak will likely have no future issues.

Yes, probably won't need to actually replace any except repair the
access hole required to get to/repair the leak.

It would behoove OP to try to get to where can see where/what is leaking
-- it may be possible to isolate the offending fixture depending on
where/what it is that is leaking and mitigate further damage significantly.

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