Hired a AC installer in Aug 2019 to install duct work and AC unit on our detached garage. We paid final bill in full within days. 10 months later in June 2020 we get new bill stating we still owe $500 more. We received a final statement from the company showing we had a zero balance in Aug 2019. Can they put a lien against our property without taking us to court first. We have all the documentation to prove our payments etc.