Michael J. Costello

Michael J. Costello: Attorney with Adelson, Testan, Brundo Novell & Jimenez
Attorney Awards


Michael Costello is the firm's Managing Partner of Continuing Education and he is located in our Santa Ana office. He has practiced in the field of workers' compensation for over 13 years, serving as counsel for employers, insurance carriers, adjusting agencies and state organizations. Additionally, Mr. Costello provides training as well as review and analysis of business and workers' compensation operations for the business community.

Mr. Costello gained vital experience and knowledge of business operations as a retail manager at a major drug store chain as well as a major office supply chain. He is skilled in management, human resource, public speaking, budgeting and marketing through 12 plus years in retail, travel and production management.

Mr. Costello continues to provide training and education to the business and insurance communities with past presentations to top Corporations and Insurance Companies.

In the March/April 2013 Risk Management Magazine, he authored an article concerning recent California legislation and continues to educate the risk management community on the changes.

As a former Vice President of the Professionals in Workers Compensation, Southern California Chapter, member of the Orange County Bar Association and as District Chair and Community Chair positions for the Boy Scouts of America, Mr. Costello continues to dedicate his time and energy to the local community.


"Ethical Issues of an Attorney Sports Agent" Ventura College of Law, Ventura, California 1999.

Public Speaking:

Cambridge Integrated Services - Pasadena, CA: SB899

Mobile/Exxon - Houston TX: SB899

Disney World Wide Services - Anaheim, CA: SB899, average weekly wage, Seasonal Employment, Retirement.

SRS - Pleasanton, CA: AMA Guides, sleep impairment, apportionment

Gallagher Bassett Services - Las Vegas, NV: apportionment, 15% PD adjustment, AMA Guides, ratings

Gallagher Bassett Services - Scottsdale, AZ: apportionment, earnings, seasonal employment, retirement, 15% PD adjustment

AIG Claims Services - Phoenix, AZ: subrogation claims, apportionment, PD adjustments.

"Sleep Deprivation under the AMA Guides" - Los Angeles County Council, Los Angeles, CA: in conjunction with Workers Compensation Claims Association

"Sleep Deprivation under AMA Guides" - Encino, CA: in conjunction with Workers Compensation Claims Association

"Time Management for the California Bar", Flemings Fundamentals of Law, Fullerton, CA

Areas of Practice (1)

  • Workers' Compensation Defense

Education & Credentials

Contact Information:
(714) 245-8888  Phone
(714) 245-8880  Fax
University Attended:
Moorpark College, Moorpark, CA, Associate of Arts, Business, 1996; Moorpark College, Moorpark, CA, Associate of Science, Marketing, 1996; University of California, Los Angeles, CA, Certificate of Completion, General Law, 1996
Law School Attended:
Ventura College of Law, Ventura, CA, Juris Doctor, 2000
Year of First Admission:
2000, California

Peer Reviews

5.0/5.0 (1 review)
Peer Reviewed
  • Legal Knowledge

  • Analytical Capability

  • Judgment

  • Communication

  • Legal Experience


*Peer Reviews provided before April 15, 2008 are not displayed.

Santa Ana, California

Contact Michael J. Costello

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