Gambling and elderly advice

My 67 yr old neighbor is from Hong Kong and she speaks English, but often people have a hard time understanding her so she comes to me for help with a lot of things.

Her husband of many years is in the same position but he has a terrible addiction to gambling. Ever since they retired he's been completely absorbed by the casino to the point she's had to cut him off from finances, he's been fired, he ruined his car and no longer has one, and he causes her extreme distress. He doesn't take his medication for a variety of issues (he throws it away) and still finds ways to get money from others somehow to gamble with.

I've seen him wandering in a general daze with his laundry in a bag etc as it seems to have completely consumed him. Sometimes he's wearing a worn out rivers casino jacket and that's all he has.

They used to own and run a restaurant together and it crushes me to see them like this. She showed me somehow his health insurance was cancelled and one of his meds is like $1700 for a month supply.

I'm just wondering if anyone has any suggestions of who she could reach out to for him to get some help. Even if it's involuntary.