My question involves an easement in the state of: New York

Hello, in 1970 my father purchased 68 acres of land that included a house. Eventually he sold 4.6 acres and the house to my Uncle who later sold the land and house to the now current owner. When my Uncle sold he had a 22 foot wide 66 foot long Easement recorded by a licensed Land Surveyor to provide access to our barns. The current owner is threatening to put up a gate and lock it; she has said she will supply me with a key. My questions are:
1. Can she put a lock on the gate?
2. Who does an Easement grant privileges to?
3. Can I have copies made of the key and share them with my brothers, sisters and extended family members?
4. If she puts the gate up on a 22 foot wide easement how wide does the gate have to be?
5. Who pays for the surveying to ensure the easement is laid out correctly?


Thank you