O’Leary Intelligence Group (OIG)
O’Leary Intelligence Group is a boutique investigative firm specializing in complex financial investigations, cryptocurrency tracing, asset discovery, and litigation support. We help attorneys, businesses, financial institutions, fiduciaries, and individuals uncover critical information, identify assets, and navigate complex financial matters with confidence.
Our work combines investigative methodology, blockchain analysis, open-source intelligence (OSINT), and financial research to deliver clear, actionable findings tailored to each client’s objectives.

Year of industry exprience
Complex financial investigations demand more than data—they require disciplined analysis, investigative judgment, and the ability to transform fragmented information into clear, defensible conclusions.
Erin O’Leary founded O’Leary Intelligence Group to bring the discipline of intelligence analysis and investigative rigor to complex financial matters involving cryptocurrency, fraud, hidden assets, and litigation. Drawing on more than 25 years of intelligence, investigative, and analytical experience, she helps attorneys, businesses, financial institutions, fiduciaries, and private clients transform complexity into clarity.
Prior to founding O’Leary Intelligence Group, Erin served in intelligence and analytical roles supporting national security and complex investigative missions. Her work required disciplined research, structured analytical methodologies, and evidence-based reporting to support high-consequence decision-making. Today, she applies those same principles to complex financial investigations in the private sector.
Her investigative approach combines blockchain analysis, financial research, open-source intelligence (OSINT), business and ownership research, asset discovery, and structured analytical methodologies to uncover critical facts, identify meaningful relationships, and produce clear, attorney-ready findings.
Erin believes the best investigations do more than uncover information—they provide clients with the clarity and confidence needed to make informed decisions. Every engagement is approached with objectivity, discretion, meticulous attention to detail, and a commitment to delivering professional work product that clients can rely upon.
Whether tracing cryptocurrency across multiple blockchains, analyzing complex financial records, or uncovering concealed assets, Erin is committed to transforming complex information into clear, actionable findings that help clients make informed decisions with confidence.
O’Leary Intelligence Group is a boutique investigative firm specializing in complex financial investigations, cryptocurrency tracing, asset discovery, and litigation support. We help attorneys, businesses, financial institutions, fiduciaries, and individuals uncover critical information, identify assets, and navigate complex financial matters with confidence.
Our work combines investigative methodology, blockchain analysis, open-source intelligence (OSINT), and financial research to deliver clear, actionable findings tailored to each client’s objectives.
Assessment Administration Services, L.L.C. was founded by Lisa Griffin in 2009. After 23 years of experience at the Charter Township of Shelby, Lisa decided to branch out on her own.
Lisa has a Bachelor’s Degree of Science in Business Administration from Central Michigan University. She holds the Michigan Advanced Certified Assessing Officer designation from the State of Michigan as well as the Personal Property Examiner Certificate. She has over 37 years of experience in the Assessing field.
Lisa is the past President of the Macomb Assessor’s Organization and was an Executive Board Member of the Southeastern Chapter of the Michigan Assessor’s Association. She is also a member of the International Association of Assessing Officers, the Michigan Assessor’s Association and Macomb Assessor’s Organization.
William Griffin is co-owner of Assessment Administration Services. Bill has over 40 years of experience in the Assessing field. He holds the Michigan Master Assessing Officer Designation which is the highest designation awarded by the State as well as the Personal Property Examiner Certificate. Bill studied labor relations at Eastern Michigan University.
Bill is a member of the International Association of Assessing Officers, Michigan Assessor’s Association, Oakland County Association of Assessing Officers and Macomb Assessor’s Organization
Whether supporting litigation, tracing cryptocurrency, uncovering hidden assets, or conducting due diligence, O’Leary Intelligence Group delivers investigative solutions designed to provide clarity when it matters most.
Every matter begins with a clear understanding of the facts, objectives, and investigative challenges involved. We combine financial research, blockchain analysis, asset discovery techniques, and open-source intelligence to develop findings that are thorough, objective, and actionable.
KEY POINTS:
• Thorough and evidence-driven
• Tailored to each matter
• Clear and well-documented
• Confidential and professional
• Designed to support informed decisions
To help clients uncover critical information, identify assets, trace cryptocurrency transactions, and obtain reliable investigative findings that support informed decisions and legal objectives.
We are committed to delivering professional investigative services with discretion, analytical rigor, and a focus on providing clear, actionable results.
We provide investigative solutions for complex financial, legal, and asset-related matters requiring accuracy, discretion, and professional reporting.