Put an actual response deadline into the service terms. “Available throughout” could still mean waiting a week at the crucial moment. Ask which channel is used, the normal response window, who covers absences, and where an unanswered issue is escalated. A named contact is only useful if there is...
Also clarify the legal and occupancy setup before refining the number. Is the land and building ownership straightforward, or is there any leasehold or other title arrangement? Are there service charges or shared-estate obligations? Lease length may be irrelevant for this villa, but title...