I am a lawyer, licensed to practice law in Indiana, and I will tell you what everyone else has said:
Go get a lawyer. Get a lawyer who has a general practice in the county in which you reside. Do not get a lawyer from another county. Indiana has 92 counties, and in every county the law is the same. But the rules are different. You can bend the law, but you cannot mess with the rules. If you know what I mean.
When it comes to things like property rights, anything pertaining to rights in real estate must be in writing and must be recorded with the county recorder to be binding. Any lawyer will need to see the actual conveyance of the easement and what it provides for. The actual written language is key and no lawyer can give sound advice without reading the document itself.
I cannot give you more sound advice than that.
Thank you