Do I need a written contract and insurance?
Yes, the paper has to say which rooms are in, facade included or not, and that the session is in the venue with people there. Without that, a morning in the sierra can leave the door out and nobody has it in writing.
Write to us. A quote with no commitment.

Write door, dining room and bar, and whether service stays open. In Madrid there is an argument afterwards about whether the glass was in, because it was not on the paper. The paper lists the rooms and says the session is with the venue running.