Most hunters don't have large properties where they can effectively manage their deer herd, instead the majority of us have to deal with "sharing" deer with our neighbors because the deer's home range is larger than just their own property. Often we find ourselves pulling the trigger on a buck that ideally we would have like see grow another year or two, but we think "if we don't shoot ‘em, our neighbors will."
The mystery of not knowing the adjacent property's harvest criteria will often has us making abrupt decisions in the stand, so instead try talking to your neighbors. Just introducing yourself and talking to your neighbors might be the break through that gets your deer management program producing more mature bucks! Your neighbors might not have the same harvest criteria as you, but it might ease the worry for both of you that a solid deer management is a shared objective. It is a reality, that their motto might be "if it's brown, it's down!", but it won't hurt to have a short conversation with them.
So muster up the courage and go introduce yourself, the outcome and benefits to your deer management program might just surprise you!