Incurable illnesses and Reverse mortgage

Please help me....My name is Deborah Murray. I am 59 yrs. old and was a Registered Nurse. I am on Soc. disability and have not been physically able to work for over 5 years due to (Systemic Lupus, cutaneous lupus, Sjogrens' syndrome, Addisons' disease, carpal tunnel syndrome,both hands, fibromyalgia, chronic lung disease, degenerative spine disease, and attetion deficit disorder). I am living with my 92 yr old mother in my childhood home. The home was supposed to be my inheritence because I am alone, disabled and both of my brothers are married and have plenty of money. My older brother set up a reverse mortgage for my mother to give her income for the past five plus years( I was not consulted. I am getting more ill with worry,what can I do?