oooh, SM, that is a very very big step - and one I am SO pleased you have taken.
She sounds like a sterling good woman, and I suspect she is going to be a very valuable support for you.
I think she is right about H, and I am gald she has been so honest and straightforward with you. You sound as if you are facing up to it all v well.
TBH, I wouldn't talk to your H about it v much atm. Don't discuss your HV's support for YOU with him - he will do his best to rip it apart. Can you do your thinking privately, or shared with HV and close friend / sister? There is no need to share every step with H, he will try to circumvent you, won't he, and throw you into a wobble.
Basically - he has to sort out some counselling/visit his GP/ get anger management NOW, and take responsibility for it, or nothing is going to change. Actually it will change - for the worse.
If I were you, I would tell him he needs to follow through with what he agreed re anger mgt - and take no notice of any excuses about 'what the HV thinks of him', and meanwhile, without telling him, get professional help to find out your rights re money, house etc. It WILL make you feel stronger to know that you are not a helpless homeless starving waif without him!
Suonds like you have your bravers at the ready, SM - you're doing well.
I never do this on MN, but - big hugs!