I'm in high school and do a few lawns around the neighborhood. In the winter about half my lawns are dormant (bermuda), so I do stump removals to keep income. While I ask the homeowner and always call 811, there is always a possible threat of hitting a phone line, low voltage line, or worse... I wanted to create a contract specifically for one-time jobs like this. If a customer were to agree and sign a contract stating that I am not responsible for any damage to these lines, either by accident or inadvertantly, would this document uphold legally? Aside from my personal situation, I am curious to know the general legality (while it may vary by state), that by stating that you are not responsible, and the customer signing the contract, the contract would actually have legal inegrity. Sorry if I sound like an idiot, but you have to start somewhere, right?