Possible Family Manipulation/fraud

Hello,

In January, my sister told me she was going to sue me and that I was “dead to her.” She said the reason was that she wants our parents out of my house. However, my parents enjoy living here because they get to spend time with their grandchildren, who help and support them. My sister seems intent on taking that away from them.

My brother-in-law is a financial professional, which makes some recent events more concerning. I noticed a bank statement left out in their living area showing a $100,000 transfer to another bank account that my dad says he does not have online access to. Additionally, my sister and brother-in-law seem to visit banks more often than they go to stores, restaurants, or even doctors.

A few months ago, my mom was prescribed Donepezil to help slow her Alzheimer’s disease. Shortly afterward, my sister claimed that the medication was making my mom “mean” and said the doctor advised stopping it if that happened. I questioned this, as personality changes are more commonly part of the progression of Alzheimer's disease rather than a side effect of the medication. This raised concerns that my sister may be interfering with her treatment.

We are also worried she may be limiting doctor visits. It took over a year for her to schedule a neurologist appointment after being informed of my mom’s condition. We fear she may be delaying care intentionally, possibly due to financial motivations, as she may benefit from our parents’ assets.

Regarding my dad, he often yells, so we offered him financial help to move out. My sister strongly opposed this and appears to be keeping him in place to contribute to household expenses. When we showed him alternative housing options, she told him over the phone, “You are going to live in a house of my choice, or I won’t help you anymore—you’ll have to figure things out yourself.”

There have also been instances where she has created confusion or fear. For example, she once called my dad saying, “Don’t sign anything—why did you sign something?” even though he hadn’t signed anything.

Recently, my mom received a positive Cologuard test result. I offered to take her for a colonoscopy, but my sister reacted strongly and told my dad that if my mom went through with it, she would stop helping him.

Overall, I am very concerned that my sister may be manipulating my parents, interfering with their medical care, and possibly exploiting them financially.

What do you think is going on, and what should I do?

Location: GA