Cullis AI
Expert Witness Services

When AI is the issue,
credentials matter.

Jake Rebo brings real enterprise AI governance experience to the stand - 85+ use cases reviewed, 20+ LLMs approved, and direct authorship of AI governance frameworks at a global technology company. Not an academic. An operator who knows how these systems actually work.

Engagement Process Contact Jake
Qualifications at a Glance
JD / MBAUniversity of Montana
Six Sigma Master Black BeltVillanova University - VIL012091
AIGP CertificationIAPP - Target: September 2026
Director, AI GovernanceNokia - Reviewed 85+ AI use cases
U.S. Army CaptainBronze Star - Afghanistan
SEAK Expert Witness TrainingDeposition & Trial - September 2026
Practice Areas

Where AI and the law collide

Cullis AI expert witness engagements focus on the intersection of artificial intelligence and legal practice - the precise area where most attorneys lack deep technical grounding and where the stakes are highest.

AI Malpractice

Standard of care analysis for attorney AI use, including competence obligations, verification duties, and supervision responsibilities under Rules 1.1, 5.1, and 5.3.

  • Attorney AI use standard of care
  • Duty to verify AI-generated outputs
  • Hallucination and citation failure cases
  • Supervisory obligations over AI tools

Privilege & Confidentiality

Attorney-client privilege waiver through consumer AI platform use, Rule 1.6 confidentiality obligations, and data handling analysis under cloud AI terms of service.

  • Consumer AI privilege waiver (Heppner-type)
  • Cloud AI terms of service analysis
  • DPA adequacy and data handling standards
  • Work product protection in AI workflows

Disciplinary Proceedings

Rule 1.1 competence obligations regarding AI tools, analysis of attorney conduct against current bar guidance and ABA Formal Opinion 512, and regulatory standard of care.

  • ABA Formal Opinion 512 (July 2024) analysis
  • State bar AI ethics guidance review
  • Competence standard evaluation
  • Comparative practice analysis

Evidence Authentication

AI-generated evidence reliability, deepfake and synthetic media identification, chain of custody for AI outputs, and admissibility analysis under FRE 901 and related standards.

  • AI-generated document and image analysis
  • Deepfake and synthetic media detection
  • Chain of custody for AI outputs
  • Model reliability and output reproducibility

AI Governance

Enterprise AI deployment standards, vendor evaluation methodology, organizational AI policy adequacy, and compliance with emerging regulatory frameworks including the EU AI Act.

  • Enterprise AI policy adequacy review
  • Vendor evaluation and procurement standards
  • EU AI Act and regulatory compliance
  • Organizational AI risk frameworks

Not sure if it fits?

AI in litigation is a rapidly evolving area. If your matter involves artificial intelligence in any capacity - as a tool used by counsel, as evidence, or as subject matter - reach out. Jake will assess whether expert witness support is appropriate.

Discuss your matter
Engagement Process

A structured path with a built-in decision point

Every engagement is phased to protect retaining counsel. You evaluate the expert's professional opinion before committing to the higher-rate drafting and testimony phases. No surprises.

1
Phase 1
Initial Consultation
Jake reviews the matter, assesses materials, identifies the core technical and legal issues, and forms preliminary professional opinions. This phase establishes whether the matter is one where expert testimony will be useful and what positions the evidence supports.
$450 / hr
2
Phase 2
Outline Presentation
Jake presents findings and the proposed report structure to retaining counsel, including the professional opinion he will offer. Counsel has full visibility into the expert's positions before any report is drafted.
$450 / hr
Decision Point - Proceed or Terminate
After the outline presentation, retaining counsel decides whether to proceed to the drafting and testimony phases. Termination at this stage requires only payment of fees incurred. Counsel agrees not to use Jake's opinions or proprietary analysis if terminating.
3
Phase 3
Report Drafting
Jake drafts the formal expert report based on the approved outline and professional opinion. The report is structured to satisfy FRE 702 and Daubert requirements, with full disclosure of methodology, data relied upon, and opinions offered.
$600 / hr
4
Phase 4
Testimony Preparation
Preparation sessions with retaining counsel covering anticipated cross-examination, technical framing for a lay jury or bench, and coordination on demonstrative exhibits. Jake prepares to explain complex AI concepts in plain language without losing precision.
$600 / hr
5
Phase 5
Live Testimony
Deposition or trial testimony. Jake testifies to his professional opinions clearly and defends them under cross-examination. His background in military leadership, legal operations, and enterprise AI governance provides the depth and credibility that AI matters demand.
$800 / hr
Rate Schedule

Transparent fees. No surprises.

Rates are differentiated by engagement phase to reflect the nature of the work. Initial consultation and outline presentation allow retaining counsel to evaluate the engagement at the lowest rate before committing to report drafting and testimony.

Phases 1 - 2
Initial Consultation & Outline Presentation
$450
per hour
  • Matter assessment and materials review
  • Formation of preliminary professional opinions
  • Outline presentation to retaining counsel
  • No commitment beyond this phase required
Phases 3 - 4
Report Drafting & Testimony Preparation
$600
per hour
  • FRE 702 / Daubert-compliant expert report
  • Full methodology and opinion disclosure
  • Prep sessions with retaining counsel
  • Demonstrative exhibit coordination
Phase 5
Live Testimony (Deposition or Trial)
$800
per hour
  • Deposition testimony
  • Trial testimony
  • Cross-examination response
  • Travel billed at cost
Retention and conflict check All engagements begin with a conflict check and a signed retention agreement before any billable work commences. Travel time is billed at $200/hr. Lodging at $250/night. Per diem at $100/day. Mileage at the IRS standard rate. Expert witness services go live September 30, 2026, aligned with AIGP certification completion and Nokia departure.
Background & Credentials

Depth built in the field, not the classroom

Jake Rebo is a licensed Montana attorney and founder of Cullis AI. His expert witness credibility rests on direct, documented enterprise AI governance experience - not theoretical AI knowledge, but operational decision-making at scale on real AI deployments.

Education
  • JD and MBA - University of MontanaLicensed Montana attorney
  • BS in Philosophy - Kansas State UniversityAnalytical foundations
  • Six Sigma Master Black Belt - Villanova UniversityCert. VIL012091 - Process analysis and methodology
Certifications in Progress
  • AI Governance Professional (AIGP) - IAPPTarget completion: September 30, 2026
  • SEAK Expert Witness Deposition & Trial TrainingSeptember 24-25, 2026 - Zoom
Professional Experience
  • Director, Legal Operations and AI Governance - NokiaReviewed 85+ AI use cases; approved 20+ LLMs for enterprise deployment
  • Co-authored Nokia AI Coding Rules of EngagementEnterprise-level AI governance policy authorship
  • NI Representative, Keystone PMO - NokiaEnterprise AI governance initiative; AI SOP development
  • U.S. Army Captain - Bronze StarSeptember 2000 - October 2014; Afghanistan service
85+
Enterprise AI Use Cases Reviewed
Personally reviewed and evaluated AI use cases for legal, compliance, and risk considerations at Nokia's enterprise level - the kind of hands-on experience that is directly translatable to expert opinion.
20+
LLMs Approved for Enterprise Deployment
Reviewed and approved large language models for Nokia's AISH platform, applying technical evaluation criteria, legal compliance standards, and organizational risk frameworks.
14
Years U.S. Army
Captain
JD
Licensed
Montana Attorney
MBA
University
of Montana
Directory Listings
Available on JurisPro, SEAK, and Experts.com (ALM) beginning September 30, 2026.
Services Timeline
Expert witness services go live September 30, 2026
Aligned with completion of AIGP certification, SEAK deposition and trial training, and Jake's departure from Nokia. Retaining counsel inquiries are welcome now - Jake will assess matters and confirm availability upon go-live.
Go-Live Date
September 30, 2026
Retain Jake as Expert Witness
Ready to discuss your matter?
Jake accepts a limited number of expert witness engagements to ensure each matter receives the time and attention it deserves. Reach out now to discuss whether your matter is a fit and to check availability.
Email Jake Directly (406) 529-5268
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