Your situation sounds really hard but stay resolute, you will get through this. Drugfam have been great for me, they are manned by volunteers that have been through this or are qualified addiction counsellors.
My mum is doing better now, thanks, my son is also turning a corner. I remember last Christmas being at my mum’s 60 miles away and she had fallen so I was trying to get her back up and my son was shouting at me down the phone that my partner was rationing codeine tablets which was an affront on his rights. I just wanted to cry. Like you I also looked at getting him sectioned, because he was a real risk to himself, but I was told that these days he’d have to be running around with a weapon before they’d think about that. I think where you will get better traction is that there is a child involved. That’s going to be taken seriously and also because coming off an alcohol problem as bad as your partner’s has to be done under medical supervision. You do need to be firm that right now he cannot live with you. Hopefully he will get the help he needs.
Holding it together at work is really hard, most of the people I work with know there is a problem with my son and are pretty good when things are bad. I run a company and there are days when I just want to get a more low level job that I don’t have to worry about so much, but at the same time I know at some point I’m probably going to have to pay for rehab and that is really expensive.
I have thought about you a lot since you posted. I really hope you get the help you need with this.