As sad as this situation is - you nor anyone else can help him until HE WANTS to get clean and sober.
If he does something stupid again - like burn through $1200 in 3 days on crack - she might be able to get a psych hold on him and get him into a state sponsored 30 day in-house treatment program.
Doing this would mean that she needs to accept and acknowledge that he has a problem - not sure if what it will take for her to acknowledge that.
If he can blow through $1200 - sounds like they can afford private health insurance....BC/BS private for a family of 4 is $483 a month in VA...I'm sure there are a lot of state run programs in California (assuming they live in CA)....have her look into the state health programs they have.
She needs to attend meetings - again - if she is in denial - she won't see the use in going. Someone may have to trick her into a meeting - not always the wisest thing to do - but it might give her that light bulb moment that she needs. If not, she'll have to wait until he hits rock bottom, goes through all of their money and they lose it all....that might be what it takes for her to recognize the problem is serious!!!
Sorry!!! Wish I could give better news.