Yes has given you notice so up to you if you are not there , Up to you to make arrangementsIf they have given enough time then yes, sounds like they have. Sorry, maybe ask someone to be there instead of you
No, they can only enter their property. If they do not own it they have no rights. If you are actually calling their property yours then of course, it belongs to them. They can inspect it, you do not have to be there.Yes, they are allowed to enter the property that they own and that you are merely borrowing from them. They only need to give you notice, which they have.