I did a billboard sight-distance vegetation clearing once...I got no signature, all was lost!
I contacted the homeowner, and got permission to use her property to gain access to the highway Right Of Way (ROW). In exchange for the use of her yard, we agreed to clear out some other underbrush and remove some weed trees, as well as cutting back some branches over her house.
I wrote up my proposal explicitly stating that we had contacted her (including her name and address), and stated exactly what we were doing. The big advertising company signed my proposal, and instructed us to proceed.
When we finished the job, the lady found out that we were working for the billboard company (I don't know who she thought we were contracting with). She was REALLY PISSED OFF to find that we had eliminated all the brush on the highway side of the fence, so she sued the advertising company for damages. She hired a scum-sucking bottom feeder lawyer that sued for the value of every tree that we had cut on her side of the fence, even including all the trees that were within the ROW property line markers staked in her yard.
1. She denied ever giving us permission to use her yard. In fact, she denied ever talking to us.
2. The Advertising company never paid me for the work: $1,780.00 gone!
3. The billboard company counter-sued my insurance company, despite the fact that I had their signature authorizing the work.
4. Several years later, my insurance company settled with the billboard company. I paid a $2,500 deductible. Poof! more money down the drain.
5. The lady settled for an un-specified amount of money, which was split between my insurance company and the billboard company. She got somewhere over over $10,000. Her original suit was for over 100,000.00.
NEVER trust the customer to contact the neighbor, and if they tell you it is ok to use their property, you had better get a note stating that it is ok.
If we had only gotten a hand scribbled note from the lady giving us permission, her lawsuit would have been without any teeth, and she would have gotten nothing. The strength of her claim was in her denial of ever giving permission. I had witnesses, and told the insurance companies to not pay the money, that I would defend the case myself in court...all to no avail.