My company has a long term lease with an organization that manages cell towers for the wireless industry. We are coming up on a 5 year renewal term and they've come to me with a proposal for an long term (75 year) easement. A relatively sizable single payment or some up front and an installment payment is there offer. I'm hoping to speak to someone who has expertise or experience with these sorts of deals to run the proposal by them. Thank you in advance for your help.