Tim Johnson
Tim Johnson is a founding partner of JLK Rosenberger, a CPA firm heardquartered in Irvine. He has over 25 years of broad public accounting experience and extensive expertise in tax planning,…
Fiscal Year 202122
Internal Audit - Audit Reports - FY 2021-22Audit No. 2139-C First & Final Close-Out Follow-Up Internal Control Audit: HCA/Public Guardian Fiduciary Fund 165Revision Date: 06/…
Fiscal Year 202223
Internal Audit - Audit Reports - FY 2022-23Audit No. 2259-E Second & Final Close-Out Follow-Up Information Technology Audit: John Wayne Airport Selected IT General…
Mary Ann Cosep
Mary Ann began her career in the tax practice at PricewaterhouseCoopers. Subsequently, she worked as an auditor at the HHS Office of Inspector General, where she performed a wide variety of…
Tina Dinh
Tina started her career in the private sector before joining the County of Orange in 2017. After taking on various accounting roles within the County, Tina joined Internal Audit Department in 2023.…
Fiscal Year 202324
Internal Audit - Audit Reports - FY 2023-24Audit No. 2306 Internal Control Audit: Child Support Services Cash ReceiptsRevision Date: 06/28/2024Audit No. 2311 (2046)…
Fiscal Year 202425
Internal Audit - Audit Reports - FY 2024-25Audit No. 2306-F1 First & Final Close-Out Follow-Up Internal Control Audit: Child Support Services Cash ReceiptsRevision Date:…
Jose A Olivo
Jose Olivo serves as the Deputy Director of Internal Audit for Orange County. Jose is responsible for leading audit professionals in providing independent and objective assurance and consulting…