1. bag limits? They don't always match what your licence will allow.
2. guest, like your kids, can they shoot your alotted game?
3. access rights. Some folks won't let you on during off season ecept for predefined work weekends.
4. back out clause.
5. who are the other folks that lease with you if any.
6. How many guns?
7. Trophy rules, sometime the owner will have rules about what is to small, too big, too young, to old etc. Look close, I have seen leases that fine or break the lease if you don't follow to the letter.
8. Does the land include livestoick, cattle, sheep, goats etc.
9. if your state allows, what rules about feeders, stands and blinds? Some folks have the defined.
10. How are the guns spread out? Can others on the lease hunt your patch if you are not present?

I could go on but you get the idea.