Can a lien be filed on a property owner who did not sign a contract or provide verbal or written approval to commence work?
That’s a good one. To properly respond, more facts are necessary. In the meantime:
If a contractor performed work at a property on an oral contract directly with the owner, that contractor would have lien rights.
If a contractor performed work at a property without any contract and without permission of the owner, a couple of questions present themselves: a) why? and b) where was the owner?
Also, the contractor most probably has no lien rights.