Im not licensed in Wis, so will defer to the others. If you cant file suit, you may still be able to report the incident to the State dept that licenses and regulates nursing homes. I dont know if they will have interest in investigating, after this much time. If they do, it wont put money in your pocket, but it may cause them to be fined or put under more scrutiny. If they investigate, they may find other violations, such as a failure to report the incident originally.
Unfortunately, it is too late. Generally, the statute of limitations in a nursing home case is 3 years from the date of the last negligent act. Since your mother passed away more than 3 years ago, the time to bring a lawsuit has passed.
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