Conduct seminars for chapters of CalCPA, the American Society of Women Accountants, the Society of California Accountants, the Association of Government Accountants, the National Association of Black Accountants, the Association of Latino Professionals in Finance and Accounting (previously AAHCPA), and various other organizations on technical and nontechnical topics.

Worked as assistant controller at Metropolitan Warehouse Company (1968 to 1970). Responsibilities included the training and supervision of the accounting department and office staff, development and execution of accounting and reporting systems, computer operations, inventory accounting, and internal controls.

Financial Vice President and Vice President of Administration for Scottfield Building Corporation, a subsidiary of Watt Industries in West Los Angeles (1972 to 1974). The company was involved in the development of single-family and multi-family housing projects. Responsibilities included the training and supervision of accounting and office staff, and arranging and administering all transactions for the construction and permanent financing of developments.

Worked as staff accountant at various CPA firms from 1965 to 1970 during high school and while attending CSUN.

Worked as senior accountant for Kenneth Leventhal and Company, a national firm of CPA's (1971 to 1972). Responsibilities included the performance of audits with full client responsibility, taking a client public, development of accounting and reporting systems for clients, negotiation of the acquisition and financing of a major division of a publicly held corporation on behalf of a client, and interviewing personnel for employment by clients in positions ranging from staff to vice president.

Partner at NSBN, LLP from July 2001 through December 2002. Responsible for training and education of all professional staff, recruiting, audit practice director, technical quality control, marketing and business development, and strategic planning for the firm.

Founder of The Mark Dauberman CPA Review course, an independent program, which grew to become the largest CPA review course in Southern California. The program prepared over 2,500 candidates per year in 12 Southern California locations.

Merged into Stanley H. Kaplan Educational Centers, a wholly owned subsidiary of The Washington Post, to become National Director of CPA Programs. Expanded program to become largest CPA review course in the states of California, New York, and Texas.

Founder of Mark's CPA Review Course, successor to The Mark Dauberman CPA Review Course, offering courses throughout the state of California. Mark's CPA Review also offered courses in South Korea, India, and the Middle East, as well as an on-line CPA Review Course and a video taped course for use as a self-study course.

Provide accounting, auditing, and practice management consulting to CPA firms. Practice management issues include practice development and client management, staffing, and partner compensation.

Provide staff training to CPA firms and corporate clients on fraud, the establishment of internal controls, accounting principles, and auditing standards. Also provide continuing education to members of the profession through the AICPA; California Society of CPAs Education Foundation; and Mark Dauberman Seminars. Technical topics focus on auditing and accounting with an emphasis on audit efficiency, and fraud risk analysis, applying the risk assessment standards, and strategic planning for establishing or managing an accounting practice.

Serve as senior editor for Roger CPA Review Course, a major national provider of programs to prepare individuals for the CPA exam. Ultimately responsible for all content.