Challenge DUI Double Charge

My son is serving a 17-year sentence after accepting a plea that lists both DUI manslaughter and DUI homicide for the same fatality. I want to challenge the duplicative charging in court so we can move toward a reduced sentence.

All discovery, the plea-hearing transcript, police reports, toxicology, and sentencing paperwork are ready to share in searchable PDF. What I need next is a DUI-focused post-conviction strategy that argues double-jeopardy principles, shows how the two counts punish the same act, and sets out the most persuasive case law in our jurisdiction.

Here is how I see the work unfolding:
• Deep review of the full case file and plea colloquy
• Written legal analysis identifying the best avenue—most likely a Rule 3.850 / 3.800 motion or other state-specific post-conviction filing
• Draft and finalize the motion to strike the duplicate count and adjust the sentence, including supporting memorandum of law and any affidavits needed
• Guidance on filing procedure, service, and scheduling, or direct representation if licensed in this state

If the court schedules a hearing, I will need either local appearance or detailed preparation notes so that co-counsel can argue effectively.

Please tell me about similar DUI double-charge or double-jeopardy victories you have achieved and the jurisdiction(s) where you are admitted. A clear timeline and any court-specific requirements you anticipate will help us move quickly.