1. An application must be filed under oath
2. A certificate of public convenience and necessity must be granted by FERC
3. Notice must be given to landowners
4. Eminent domain proceedings are successfully concluded in federal district court
Quite simply, you do not need to let landmen on your property at all, for any reason, until all of these steps, and all appeals have been finalized.
If it gets to the point where you’ve denied all their requests, eminent domain is your best legal option. Listen to this account from stopthepipeline.org in upstate NewYork: