I forced my son into treatment or the courts did after I had him arrested for trying to sell adderall. No treatment is wasted even though it didn't turn my son around. Everytime the addict goes through treatment, they learn something that may help them on to recovery. It may not happen at the time, but maybe someday. Rehab isn't an instant remedy, but a beginning of thinking and acting differently.
My son is also facing jail time due to failing to keep the requirements of probation. I was upset at first, but I'm learning to stand back and let the situation be what it is. he will not die in jail. He might on the streets.
You sound like a good aunt, but that is a lot of money! yikes! Whatever you decide to do, know that there are many of us here caring for you,
krhea