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Jonah A. Toleno


Location: San Diego, California
Phone: (619) 696-9500 (Ext. 104)
Direct: (619) 501-6483
Fax: (619) 615-5290
E-mail[email protected]

Ms. Toleno is a partner based in the Firm’s San Diego office. She is licensed to practice in California and Arizona. Her practice is focused on financial services law, securities arbitration and litigation, business litigation, and alternative dispute resolution. She appears regularly as trial counsel in matters pending before state and federal courts and in various arbitration forums, including the Financial Industry Regulatory Authority (FINRA, formerly known as the NASD) and the American Arbitration Association. She represents a wide range of individual and commercial clients in business disputes, complex securities litigations, securities fraud and Ponzi scheme prosecutions, customer-brokerage securities arbitrations (typically before FINRA), intra-industry brokerage employment disputes, and commercial transactions. Her intra-industry cases include employment law cases, firm transition matters, trade secret prosecution and defense and Broker Protocol consultation. She acts as outside counsel to businesses including registered broker-dealers and investment advisory firms, providing guidance and representation on regulatory, operations, compliance, employment, and corporate issues. She also represents individuals and business entities before FINRA and the Securities Exchange Commission (SEC) in investigation and enforcement actions.

Ms. Toleno has an “AV” (Preeminent) ranking under the Martindale-Hubbell attorney ratings system, with a 5.0 out of 5.0 overall rating in Securities Law, General Practice and Business Law. Martindale-Hubbell reserves the “AV” ranking for those attorneys whose peers rank him or her at the highest level of professional excellence and who adhere to the highest professional standards of conduct, ethics, reliability, and diligence. She was named a “SuperLawyer” by SuperLawyers in 2017 and 2018, a “Top Attorney” in Litigation by San Diego Magazine in 2017, and a “Best of the Bar” recipient in the San Diego Business Journal every year from 2014 to 2017. Clients appreciate Ms. Toleno’s attentiveness to their matters, her firm but personable approach in litigation, and her ability to resolve even the most complex and contentious of cases.

Ms. Toleno attended the University of California at Berkeley, where she majored in Legal Studies and minored in Music. She obtained her law degree from the University of California Hastings College of the Law in San Francisco, California. While at U.C. Hastings, she was a staff editor for the Hastings Women’s Law Journal and served as President of various student organizations. She is a leader in local community and bar organizations. She currently serves as a Co-Chair of Lawyers Club of San Diego Diverse Women’s Committee and is a member of Lawyers Club’s Judicial Endorsements Committee and Work-Life Balance Committee. She is a current Board Member and Immediate Past President of the Filipino American Lawyers of San Diego, where she currently serves as Co-Chair of its Community Outreach Committee and collaborates routinely with numerous other bar organizations. She also is active with the San Diego County Bar Association. She speaks regularly on panels before bar organizations and at local law schools on topics including financial services regulations, securities, litigation, law practice management, marketing, networking. She also serves as a volunteer in various capacities, including organizing judge panel events to increase interest among bar members in appointment to the local Bench, participating in the San Diego County Bar Association’s anti-bullying initiatives, judging the University of San Diego School of Law Moot Court Competition, mentoring law students and young lawyers informally and through local bar associations, and volunteering with Friends of Scott Foundation, Urban Street Angels, and her children’s schools and sports leagues. She is fluent in Tagalog, the national language of the Philippines.


Best of the Bar 2014 Best of the Bar 2015 Best of the Bar 2017
legalLeaders AVPeerLogo
best Lawyers 2019 best Lawyers 2020

Areas of Practice

  • Securities Litigation and Arbitration
  • Financial Services Law
  • Financial Services Employment Disputes
  • SEC Investigation and Enforcement Representation
  • FINRA Investigation Representation
  • Outside Counsel to Investment Advisory Firms
  • Business Law
  • Civil Litigation
  • Alternative Dispute Resolution
  • Contract Disputes
  • Broker Protocol Advising and Litigation


  • University of California, Hastings College of the Law, San Francisco, California
    • J.D. – 2000
    • Law Review: Hastings Women’s Law Journal, Staff Editor, 1999 – 2000
  • University of California at Berkeley, Berkeley, California
    • B.A – 1996
    • Major: Legal Studies
    • Minor: Music

Awards and Distinctions

  • “AV” Rated with Martindale Hubbell
  • Peer-rated 5 out of 5 in Securities Law, General Practice, and Business Law
  • Avvo "Superb" Rating (10.0 out of 10.0)
  • San Diego County Community Service Award for Commitment to Diversity, 2018
  • SuperLawyers, 2017, 2018
  • Inspirational Women, San Diego Woman Magazine, 2018
  • San Diego Business Journal Best of the Bar Award Recipient (Securities Law), 2017, 2016, 2015, & 2014
  • San Diego Magazine, Top Lawyers in San Diego, 2017 (Litigation)
  • San Diego Magazine, Woman of the Year Finalist, 2016
  • San Diego Daily Transcript Top Attorney (Corporate Litigation), 2015 & 2014
  • San Diego Business Journal Women Who Mean Business Award Finalist, 2014
  • Top Rated Lawyers in Securities Law, 2013

Bar Admissions

  • California, 2000
  • Arizona, 2005
  • U.S. Court of Appeals 9th Circuit

Professional Associations and Memberships

  • San Diego County Bar Association
    • Business and Corporate Law Section
    • Civil Litigation Section
    • Alternative Dispute Resolution Section
    • Employment Law Section
  • Filipino-American Lawyers of San Diego, 2015 and 2016 President; Current Board Member
    • Co-Chair of Community Outreach Committee
  • Lawyers Club of San Diego
    • Diverse Women's Committee, Co-Chair
    • Judicial Endorsements Committee Member
    • Work-Life Balance Committee Member
    • Endorsements Committee, Past Member
  • Association of Business and Trial Lawyers, San Diego Chapter
  • Pan-Asian Lawyers of San Diego
  • National Asian Pacific American Bar Association, Member, Affiliate Past President
  • National Filipino American Lawyers Association, Member, Affiliate Past President
    • Awards and Endorsements Committee
  • San Diego Chamber of Commerce, Past Member
  • American Bar Association, Past National Advisory Board Member
  • Filipino Bar Association of Northern California, Past Secretary


  • Filipino (Tagalog)