We have rented to a young couple. They have friends over on week-ends (and now starting during the week) for socializing. The gatherings are become larger and there is more and more in drinking resulting with the guests becoming intoxicated. Gatherings are getting more rowdy and ending later and later. We have addressed the rowdiness and in the past, the guests have stayed overnight but with the larger groups we have now decided to put a stop to it. Problem is, we are worried about the young guests (legal age) leaving under per our our rules and then possibly getting into an accident. Are we liable if they leave our property intoxicated and if yes, how do we protect ourselves? The partying has to stop or get tuned down. We plan to enforce our quiet enjoyment clause of the lease but need help with setting the parameters for their 'social gatherings'... thank you in advance