About Us

Leonard Sonnenberg, CPA - Managing Shareholder

As the Managing Shareholder of San Diego's largest CPA firm to specialize in homeowners associations, Leonard has over 30 years in public accounting.  He supervises all client engagements from planning and proposal stage through review and signing of all audits, reviews, reserve studies, and tax returns.  

He has served as lecturer at state and local conferences and published numerous articles on HOA audits, accounting, and tax issues. In addition, he has served as Treasurer and board member for Community Associations Institute, Clairemont Friendship Senior Center, San Diego Jaguar Club, National Masters Racquetball Association, and San Diego Racquetball Association. 

As an experienced CPA, Len is an approved AICPA Peer Reviewer, conducting Peer Reviews of other CPA firms' professional practices and auditing procedures.  

Carol Stachwick, CPA - Audit Manager

Carol has been with the firm since 1989.  As an experienced nonprofit auditor, she oversees the firm's proposals and supervises audits, reviews, compilations, and exempt tax returns for our nonprofit clients. 

Carol has volunteered for Nonprofit Management Solutions (NMS) since 1992 as Board member, Treasurer, and Trainer in nonprofit finance, budgeting, exempt tax, audits, and more. She currently serves as a Board Member and Audit Committee Chair at the San Diego Blood Bank.  In addition to teaching Non-Profit Finance for the Nonprofit Leadership & Management Program at University of San Diego, she has taught classes for Chapman University, Cal State San Marcos, plus various State and Local government agencies.

Peer Reviews:

We have received system peer reviews on our own accounting and auditing practice.  We recently received an unmodified report, which indicates that our “system of quality control has been designed to meet the requirements of the quality control standards for an accounting and auditing practice established by the AICPA and was complied with during the year then ended to provide the firm with reasonable assurance of conforming with professional standards."

Careers:

Sonnenberg & Company, CPAs is an established, growing firm always looking for high-quality, versed accounting professionals on all levels.  Please submit a resume for review at info@sonnenbergcpas.com