I'm in my 70's; in late October 2018 a contractor installed a new roof to our house. A few days later their office called and said the roof was installed and they require full payment of $10,558.54. I told them the insurance money was in an escrow account with the Mortgage Holder and they can get a check from them. They did get a check and cashed it on Nov 6, 2018. There was other work in the contract, which I think they failed to comply with contract agreements and during the roof install damaged the top of the tree when removing shingles. In early February 2019, they sent me a bill which differed from the original roof amount they requested and charged me for work that was not done or in the contract or approved by me. I called the contractor and they said the work was listed a completed and they would have to check with the crew. In late February 2019 shingles blew off the new installed roof, after several calls they did come out to repair those shingles. In late April 2019, they sent me an email asking if I had the most recent insurance paperwork. In May 2019, the insurance company contacted me about the contractors request and I informed them of the situation and at this time we are not having any future work done by the contractor. I followed up by calling the contractor and recapping the issues and telling them we decided we are not using them for any future work and I think their business practices are not in line with what I expected from a roofing contractor. I also followed up with an email. I didn’t hear anything from the contractor since May 2019. Then in November of 2020, they sent me a letter from the same contractor but different office location with another invoice with the same escalated roof cost and removed the bogus charges for work they said was done but added an undefined supplement charge of $5,527.55 and now increased the last invoice amount from $17,121.85 to $19,276.19. I just ignored this because I don’t know where these amounts are coming from. On February 9, 2021, they send me a certified letter with a new Invoice Date for $19,276.19 with a ‘Prime Contractor Notice of Intention to File Claim for Lien’. I have not responded yet but my question is there any statue of limitations for filing a Lien in the State of Wisconsin and are there any special circumstances that they can file a Lien? https://datcp.wi.gov/Pages/Publications/Liens262.aspx