My Mom signed a handwritten lease for land between she, my brother and his wife. The lease was to extend 15 years and at 1/3rd of market value. The lease was originally signed 2 years ago when Mom came home from an 8 day stay in the hospital. It was notarized by the nursing home notary the day before Mom was admitted to Hospice. My brothers wife works in the nursing home with the notary and was aware of the families coming and goings and was able to coordinate the notarization could be done when other family members were away. Any insight on how to void this lease? In MN