Check with your state because not all states have the same lien laws.
Do what you agreed to do and don't encroach on others or their property.
Liberty: Freedom from the control of others - Webster dictionary 1828
If you think you can do it or you think you can't... either way, you're right!
"The basic difference between an ordinary man and a warrior is that the warrior takes everything as a challenge while an ordinary man takes everything either as a blessing or a curse." excerpt from "Tales of Power"