Do they let you bring mevushal wine from outside? It seems their contract stipulates no wine. That’s kind of strange, at least for a wedding.

Speak to the mashgiach But it would probably need to be mevushal

They allow as far as I can recall

Ask the the rabbi of hasguache

To my knowledge they do let bring wine from the outside only with a good supervision

You could bring whatever wine you wish to serve yiur guests

As far as I recall there are wines on the tables. If wines are to be served at weddings, it must be mevushal to avoid sheilos.