Had a roof put on in Wisconsin. 60 days are past and I am ready to pay contractor, buts he says I do not need Lien waiver from subcontactor. If I get a Lien waiver from primary contractor only, can subcontractor sue me if he is not paid by primary contractor. What do I need to protect myself here. Subcontractor did not give me any lien notice, and has been over 60 days since last work was done. I am concerned that a lien waiver from primary contractor is not enough to protect me from an unpaid sub? Is lien waiver from Primary all I need?The subcontractor lien rights as I understand expired 60 days after work completed. So if he does not get paid by the primary after that 60 days, can he sue me for his money evn if his lien rights expired? Does something called quantum merit apply here? other than paying the sub directly, is there anyway to be sure the sub can not sue me?