ProofGuard AI
About ProofGuard AI

Legal technologybuilt by peoplewho did the work.

ProofGuard AI builds legal AI products, develops custom case management, CLM and CRM platforms for law firms and corporate legal teams, and provides managed IT and paralegal services to U.S. firms. Data security and AI legal reasoning sit at the center of every build.

What we do

Three linesof work.

Products

Law8 AI, case management with eight practice specific AI systems, in beta in Asia and being prepared for U.S. practice as Law8 AI America. PGBK AI for bankruptcy firms and ProofGuard Sentinel for KYC, KYB and AML are in development.

Law8 AI →

Custom development

Case management, CLM and CRM platforms and standalone AI tools, built around how a firm or legal department already works and connected to the systems it already runs.

Development →

Managed services

Virtual paralegal services and legal specialized IT support and cybersecurity for U.S. law firms, at published monthly rates.

Pricing →
Leadership

Built from operational depthand commercial execution.

ProofGuard’s leadership combines firsthand legal operations and AI engineering experience with product strategy, business development, fundraising and go to market execution across technology companies in the United States and South Korea.

Portrait of Han R. Diaz

Han R. Diaz

Co founder and Chief Legal Officer · Legal and AI engineering

The foundation was built inside litigation law firms. Over more than a decade in legal operations, Han worked across litigation firms, freelance paralegal engagements spanning bankruptcy, litigation and corporate matters, and corporate in house legal operations at Nike, supporting vendor due diligence, sponsorship and collaboration contracts, M&A, and real estate work for major headquarters projects.

That operating experience exposed the same recurring failure points across legal teams: fragmented workflows, undocumented processes, repetitive administrative work, and technology that often stops at the point where execution actually begins.

At Meta, Han worked on Llama legal reasoning, bringing legal domain experience into AI development. ProofGuard grew from that combination: legal operations knowledge, AI engineering fluency, and a first principles understanding of where automation can improve legal work without displacing attorney judgment.

Portrait of Jessica Shin

Jessica Shin

Co founder and Chief Operating Officer · Go to market and operations

Jessica brings more than six years of business development experience across semiconductor and AI markets, with a focus on turning technical products into commercially viable businesses. Her work spans partnership development, product positioning, early stage product strategy, market entry, and the operating systems required to move a company from concept into repeatable execution.

Before ProofGuard, Jessica founded a South Korea based plastic surgery software company, raised capital, and led the business through an acquisition by a hospital group in South Korea. That gives ProofGuard leadership experience not only in building technology, but in financing it, positioning it, selling it and navigating an exit.

At ProofGuard, Jessica leads go to market strategy, business development, partnerships, product strategy and company operations, translating the technical and legal capabilities of the platform into solutions firms can adopt, measure and scale.

Principles

How we build.

01

Security first

Every build starts with where client data lives, who can reach it and what the AI is allowed to see, and the answers are written into the statement of work.

02

Counsel decides

AI drafts, flags and organizes. Attorneys review, approve and sign. Nothing is filed or sent on its own.

03

Accuracy over volume

Findings are tied to their source and to the governing rule, so they can be checked rather than trusted.

04

Built for the practice

Software is shaped around the firm’s practice areas, procedures and roles, not the other way around.

Company

Where we work.

ProofGuard AI, Corporation is a New York corporation. We serve law firms and legal teams in the United States, and through Law8 AI, law firms in Asia, starting with Taiwan, with Japan, South Korea and Singapore editions in development.

For partnerships, press, investor relations or client inquiries, use our contact page.

Get started

Find the bottleneck.Engineer the fix.

Book a free discovery call. We map your workflow and show you where AI, custom software or additional capacity will reduce operating cost.