Do I have a case for legal action?

I sent the following information to relevant parties, already having sent it to my father’s church pastor, therapist, and social worker at the Office of Veterans Affairs:

In late October/early November 2020, I was visiting my father at his two-story house when he told me, for the third time, he was still in the middle of repairing his roof and was doing the work himself. After we went into his house, I asked his wife, Mary, “Please, do not allow my father to go onto the roof.”

Mary responded, “If your father wants to go onto the roof, fall off and kill himself, I can’t stop him.” The next day, I called Adult Protective Services and filed a report of elder neglect and endangerment against her.

During the week of July 24, 2022, my father sent to me a photograph of himself standing in front of a very steep cliff in Carmel, California. I accidentally deleted the photograph from my phone, but while looking onto my father’s Facebook page, I found two (2) similarly-styled photographs, and after giving this some more thought can recall my father having sent to me many other similarly-stylized photographs of himself standing in what could have been considered dangerous, compromising positions.

In addition, my father once told me, when he was still considering buying a bigger truck, Mary said to him “Go ahead, you deserve it!” He then purchased a large Ford F-250 pickup truck, much too heavy for him to drive safely and effectively. I have driven with my father in his truck through mountainous terrain and other environments, observing his poor driving behaviors and believe them to be encouraged by his wife and are a danger to himself. My father has also mentioned to me he suffers from the early stages of a dementia-related disease.

I’ve begun contacting my father’s family members concerning these matters, and his cousin has already responded:

“I never did trust Mary. I find her to be insincere. I don't know why your dad got involved with her in the first place. Your dad fell in love with a big house. I wouldn't put anything past her. Wow, really!? Your dad has dementia? I find that hard to believe.

“Trying not to be so judgemental. Mary is the devil incarnate. There's nothing Christian about her. Your dad is to blind to see it!

My father’s niece has also responded:

“…I hope everything with your Dad gets better. Yes, and NOBODY from the family liked Mary, including Grandma and Grandpa. Remember when everyone would say ‘There's Something About Mary’?”

“Yeah, I agree and would imagine it's hard to deal with her, because she has a very big influence on your Dad. I remember, in the beginning, she could do no wrong in your Dad's eyes, unfortunately.😕”

My mother, who was married to my father for 18 years, believes Mary is trying to isolate my father away from his children and family, making it difficult for anyone to see him.

If necessary, there could very well easily be a Probate courtroom full of people able to testify against Mary, as most of my father’s family does not like nor trust her, and I am currently in the process of forming a list of potential witnesses.