Seller has no need for it, it had been leased to the prior occupant who was renting the house for sale.
Not a great deal money-wise, but a very hard to get piece of property here locally. If passed on, will likely sell to someone else. My friend doesn't have the cheese to buy it all at one shot right now, even if the second parcel was on the block. So a long term lease, with rights to buy down the road is best that can be done.
I agree, in reading my description is sounds like a GD nightmare waiting to happen.
