If it was your father, I would say something else. An in-law..... I would tell him that he used up his quota for the next 3 years. Tell him that you have a 1 deer limit and he used up 3 years worth.

You can say it jokingly, but mean it. You can tell him outright, that he took a lot of deer so you are hunting it exclusively next year.

I would tell him outright NOT wait until next year to come around. Just let him know... You're banned for 2 years. Period.

When ever I hunted on other peoples' property, I always ask if there is a particular deer that is reserved, if there is a large buck that they see all the time that I am not allowed to shoot or if they have a preference... etc.

If I am anything, it is super respectful of land owners. That's just me, though. Some people take advantage of situations and people and chalk it up as a "win" even if they lose in the long run. It sounds like your father in law is just like this.