Big-

75 acres is not a ton of land depending on the terrain. If it's my families land ex. my fathers land - I'd ask him what to do. He gave permission.

If it's my "family land" ex. wifes cousins brothers land and he don't hunt. then you should let the guy know that you are going to hunt it, where you will be and he can decide if he wants to move his stand or not.

Permission land is drying up all over the place. Family usually comes first and most guys know that - that's the way it is.

-Disclaimer, If this guy mends fences, farms the land, or helps your family out on a regular basis to secure his hunting spot- Just because you're family, IMO, doesn't give you the ethical rite to "kick" him off his stand.