I had a solar company install a new roof and solar panels on my home in October 2019. The project was completed mid November with my final payment being made on 11/18/2019. The solar company subcontracted the roof replacement to a roofing company they use for their projects. Now on 2/28/2020, I receive a letter that a supplier is filing a mechanics lien on my property for non payment of supplies. The roofer called me to inform me that they plan to file a mechanics lien as well. Can they do this even though my contract is with the solar company and I have paid them in full?