National Commercial & Hotel Division
Meet the team that works relentlessly to challenge property tax assessments, uncover savings opportunities, and advocate for commercial property owners.
Division Directors
Abraham Tieh
Director of National Commercial Property Tax
CHIA, Real Estate Broker, Senior Property Tax Consultant. Leads national commercial property tax strategy and client-focused appeal execution.
Andrew Choy
Director of National Hotel Tax Division
CHIA, Senior Property Tax Consultant, Real Estate Broker & Developer. Leads hotel tax strategy with a focus on hospitality valuation and the O'Connor Approach®.
National Team

Peter Bach
Licensed National Commercial Property Tax Consultant
Supports commercial appeal strategy, property review, and owner consultation across national markets.

Melissa Colmenero
National Marketing Coordinator
Supports national outreach, event coordination, marketing initiatives, and client-facing content.

Jenny Le
National Operations Manager
Coordinates national operations, document flow, client support, and internal appeal tracking.

Jai Barlow
National Accounts Manager
Supports national account relationships, portfolio coordination, client communication, and strategic account management.

Aaron Williamson
Senior National Commercial Sales Associate
Supports commercial owners nationwide with appeal opportunities and portfolio consultation.

Kenisha Rowe
National Business Development & Client Relations Associate
Supports business development, client relationships, portfolio growth, and national account engagement.

Anna Le
National Accounts Associate
Supports national account administration, client communication, document coordination, and appeal workflow management.
Leadership
Patrick O'Connor
President & CEO
Patrick O'Connor is the President and CEO of O'Connor. With decades of experience in property tax consulting, valuation, expert witness testimony, and commercial real estate, he provides long-term leadership for the firm's national platform.

Kathleen O'Connor
Owner
Provides strategic leadership and supports the continued growth and long-term vision of O'Connor.

Tonya Felix-Davis
General Counsel
Supports legal oversight and property tax appeal pathways through litigation and counsel operations.

Sari Quinlan
Director of Federal Tax Reduction
Leads cost segregation and federal tax reduction services for commercial property owners.

Ravi Muthukrishnan
Chief Financial Officer
Provides financial leadership, strategic planning, operational oversight, and fiscal management.
A relentless advocate for taxpayers.
O'Connor's mission is to be the leading property tax advocate for taxpayers and to help drive reforms in the property tax appeal process.
Protect Taxpayers
We believe property owners deserve fair assessments and a strong advocate throughout the appeal process.
Data-Driven Strategy
We use research, market intelligence, valuation review, and appeal strategy to challenge overassessments.
Property Tax Reduction
Our proven solutions are built to help taxpayers pursue reductions in annual property tax assessments.
Industry Reform
We work to improve the property tax appeal process and bring meaningful advocacy to taxpayers nationwide.