Specialties We are a full service CPA firm with emphasis in individual and business tax, accounting for business and QuickBooks accounting software. Our firm was founded in 1967 and serves Southern California from our offices in Camarillo, Chatsworth, Laguna Niguel and Simi Valley. History Established in 1967: The firm Dalton, Mathias & Deever CPAs was started in 1967 as the sole proprietorship Roper CPA in Northridge, California. That firm was purchased in 1975 by Curtis Dalton, CPA. In 1992, Craig Mathias, CPA was added to the partnership and in 2005, Terry Deever, CPA was added as a partner. The firm has five professional staff in addition to the above and has expanded into most areas of accounting including: Financial accounting, managerial accounting, systems design, financial planning and taxation.