There's lots of places that give 99 year leases for obscenely small amounts like $10. The neighborhood church near where I grew up owned way more land than it currently used. They "leased" the land to farmer/ranchers to grow hay in part of it and graze animals in other parts. It was leased with similarly friendly terms if not the 99 year lease.

These things are more common that people might expect. Not everyone is a lawyer-esque asshole, but that does open situations up to disagreements where people respond with "should have talked to a lawyer"