Sample of good land lease document needed

hi guys i found a new good site i have owner verbally agreed to my conditions.
I dont have any good draft of lese agreement , i could find some online but im sure due to experience accumulated on the forum you could help me out in this one .
oh the guy already purchased land with billboard on it and i want to lease the billboard with is already located on hes property and rent it for advertisement.
Thank You
J