The Team
Our team is dedicated to finding the solutions that match your unique needs.

The Team

Neal Katz, CPA
Partner

Neal’s father Milton founded the firm Katz & Company which eventually became Katz Cassidy.  Neal began to work for his father when he graduated and eventually took over as managing shareholder.

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He is the partner-in-charge of the accounting and auditing department and specializes in providing financial consulting to clients in many industries including entertainment, agriculture, real estate and law firms.  Neal is also part of the team at Katz Cassidy that handles all mergers and acquisition transactions. Neal grew up in Los Angeles and attended Palisades High School.  He received both his bachelor’s and master’s degrees from Sonoma State University and did additional graduate work at UCLA.  He was the past treasurer and president of the Buckminster Fuller Institute, a non-profit organization and has volunteered for other non-profit organizations.

Barbara Barschak, CPA
Partner

Barbara is a tax partner with a special expertise in the hospitality industry. Her clients include a wide variety of restaurants, bars and bakeries.

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Her clients also include trusts, estates, and individuals and small to medium businesses representing a wide variety of industries. Barbara was born and raised in Los Angeles and lived in Oregon for ten years where she graduated from the University of Oregon with a business degree and taught school in Portland at a local business college. Barbara sat on the national board of Women Chef’s & Restaurateurs as Treasurer. She is currently a board member of The Women’s Leadership Council, a non-profit organization with an alliance to The Fulfillment Fund, an organization formed to mentor young women who are the first in their families to attend college.

Mark Chapman, CPA
Partner

Mark is the partner-in-charge of the corporate tax group, providing financial and tax consulting to small and middle-market entrepreneurial companies.

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His primary areas of focus include a wide range of transactional and advisory work for private companies, structuring acquisitive and divisive corporate reorganizations, start-ups and liquidations.  He also consults on real estate development and acquisition transactions.  His clients are primarily in real estate, manufacturing, service, and independent registered investment advising. He also provides full-service business management services.  Prior to Katz Cassidy, Mark was a tax partner at a local accounting firm in Encino. He began his career at BDO, LLP in Century City where he was a tax manager in the manufacturing and real estate specialty groups, and did tax planning and consulting for middle-market public and private companies. Mark received us undergraduate degree in economics from UCSB and has a Masters of Science in taxation.

Philippe Kopf, CPA
Partner

Philippe has spent most of his career at Katz Cassidy and concentrates on tax consulting with owners of small and medium sized businesses in retail, wholesale, professional and hospitality.

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He is a Quickbooks Pro Advisor, has been involved with the program since its creation, and has designed and implemented accounting systems for many of our clients. Philippe grew up in Mexico City and was a member of the Mexican national swimming team. He has been interviewed by Spanish speaking publications including La Opinión and Bloomberg providing commentary about accounting and tax issues affecting the Latino population in Los Angeles. He graduated from USC with a Bachelors of Business Administration Degree and had a minor in Engineering in Programming and Data Processing. He also did post graduate work at UCLA where he received several awards in accounting and taxation. Philippe is involved in Temple Isaiah’s many social action activities along with his wife who is the director of the religious school. He has 3 daughters in college pursuing undergraduate and graduate degrees.

The Team

David Rabb, CPA
Principal

David’s public and private accounting experience spanned several prestigious companies before finally landing at Katz Cassidy.

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Several years after graduating with a BA in psychology and economics, he became the controller for the Israeli-based Bank Leumi and shortly thereafter pursued a position at Laventhol & Horwath in Los Angeles. Ultimately David grew tired of the large firm atmosphere and joined our practice.

At Katz Cassidy, David focuses primarily on accounting, taxation and planning for restaurants and is also in charge of our not-for-profit practice. When he’s not toiling away on complex tax issues, David is spending his leisure time biking, hiking and traveling to different corners of California to visit family members.

Catherine Thompson
Principal

Catherine has over 20 years experience in public accounting and comes to Katz Cassidy with a strong background in business management and partnership taxation.

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She assists new and established partnerships with investor income allocations, cash distribution waterfalls and ensuring owners receive full benefits of deductions and tax credits available.

Prior to Katz Cassidy, Catherine worked at several local CPA firms and was an internal audit specialist at a Los Angeles based bank.

Leigh Ann Magier, CPA
Principal

Leigh Ann is the technical leader of Katz Cassidy's audit department and oversees all financial statement engagements.

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For over 25 years, she has been working with clients in a wide variety of industries including construction, manufacturing, professional services, not-for-profit, restaurant and retail. She also has a strong background in employee benefit plan audits, agreed-upon procedures and attestation engagements.

Leigh Ann also assists clients with accounting procedures, accounting systems installation and setup of remote access and cloud hosting. When not involved in audits, she assists the tax department with tax preparation, review, planning and audit representation.

Prior to Katz Cassidy, Leigh Ann began her career at Good, Swartz and Berns, a large local firm in Los Angeles and spent time at RBZ, LLP (now Armanino, LLP). She graduated with honors from California State University, Northridge.

Gary M. Osterhout, CPA
Manager

Gary is an accomplished multinational Fortune 500 tax professional with progressive experience in Big 4 public accounting, state and local government and multiple industry sectors.

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He has a proven facility with tax management, planning, consulting, compliance and complex tax provisions and has considerable experience producing effective state and local tax solutions.

Before Katz Cassidy, Gary was a director of state and local tax at AECOM, a publicly traded, Fortune 500 architectural and engineering company. He also spent ten years at Deloitte and helped develop and manage the firm’s National Multistate Tax Group which delivered technical internal newsletters and tax alerts. He was also part of the part of the firm’s select FAS 109/FIN 48 solutions team.

Gary received both his Bachelor’s Degree and his Masters of Science in Taxation from Colorado State University.

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