A good parole lawyer can be the difference between getting parole or being denied. The parole panel will start reviewing your husband's case 60 days before he's eligible. That means that you need to hire a parole lawyer at least 6 months before he's up from parole. It takes time to force TDCJ to send all of his records and put together letters of support. Also, if he needs an independent exam by a doctor or psychologist, it takes even longer. The costs depends on the type of case, his...
You could call the police and try to get the district attorney to take the case by showing them your evidence. Or, you can try talking to your neighbor first. Once you call the police, expect them to return the favor.
To convince any district attorney to reduce the charges, you need to hire a tough lawyer to prepare a defense and a compelling reason. You need someone that's going to pick apart the police report, gather evidence, and tell your story.
Generally, yes. The DA in the county of the new arrest will run your history and see you're on probation. You need an attorney ASAP. Many times, the probation officer will find out, not tell you, and just arrest you when you show up for your appointment.
Generally, the probation office will file a motion to revoke your probation for this because it's a new law violation. You'll have to hire an attorney to defend you on the new dwi and the probation revocation.