Atty. Deyan P. Spiridonov

Atty. Deyan P. Spiridonov

Deyan P. Spiridonov is a member of the firm’s Mergers & Acquisitions practice.

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Profile Summary

About Deyan P. Spiridonov at a glance

Deyan P. Spiridonov is a m&a attorney based in San Diego, California, practicing at Paul Hastings LLP. Educated at University of California Berkeley (J.D., 2002). Recognitions include Best Lawyers in America — Mergers and Acquisitions Law (2026) and Lawyer of the Year — Mergers and Acquisitions Law (San Diego) (2014). Serands clients in San Diego, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Deyan P. Spiridonov is a member of the firm’s Mergers & Acquisitions practice
  • He is a member of the California State Bar Association
  • Deyan practices in the area of mergers and acquisitions and has represented public and private companies in the telecommunications, semiconductor, software, technology-related defense contracting, biotechnology and financial industries
  • Mr. Spiridonov has experience in structuring and negotiating all aspects of acquisition transactions, including stock acquisitions, asset acquisitions, mergers, tender offers, going-private transactions, leveraged buy-outs and joint ventures
  • In addition, Deyan represents companies and special committees to the board of directors in connection with hostile takeovers and anti-takeover defenses, including poison pills and general anti-takeover planning and strategic advice
  • According to Chambers USA 2023, one client said: "In addition to being exceptionally smart, Deyan is very creative in structuring complex deals
  • He is also extremely responsive and attentive
  • In the financial services industry Deyan has represented Citigroup in its acquisition of the European credit card network of Diners Club, and he has worked on numerous other acquisition transactions including the merger of Wells Fargo & Co. with Norwest Corporation, the acquisition of Republic New York Corporation by HSBC, acquisitions of bank and non-bank assets by MBNA Corporation as well as other transactions involving U.S. and non-U.S. financial institutions
  • Deyan has also represented private equity funds, including Platinum Equity, Symphony Technology and Paladin Capital, in their acquisition and leveraged buy-out activities

Practice Areas Explained

Deyan P. Spiridonov's Areas of Practice

Each practice area below reflects the types of cases Deyan P. Spiridonov handles, with a brief overview of what that area of law covers.

Mergers & Acquisitions

Deyan P. Spiridonov is one of 49,731 m&a attorneys indexed nationally. Browse m&a attorneys in California →

Jurisdictional Context

Why local counsel matters in California

Practicing law in California. Legal matters in California are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in San Diego are typically filed in the local municipal court or the appropriate California state district court, depending on subject matter and amount in controversy. An attorney licensed in California brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in California courts without local counsel or pro hac vice admission.

Looking for additional California attorneys? Browse all attorneys in San Diego or all attorneys in California.

Frequently Asked

Common questions about Deyan P. Spiridonov

Where is Deyan P. Spiridonov's law office located?
Deyan P. Spiridonov's law practice is located in San Diego, California. The firm is Paul Hastings LLP. You can contact the office directly through this profile page.
What practice areas does Deyan P. Spiridonov handle?
Deyan P. Spiridonov focuses on m&a. Each practice area listed reflects experience handling cases of that type in California.
Where did Deyan P. Spiridonov go to law school?
Deyan P. Spiridonov earned their education at (J.D., 2002).
How can I contact Deyan P. Spiridonov for a consultation?
You can contact Deyan P. Spiridonov directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.
What awards or recognition has Deyan P. Spiridonov received?
Deyan P. Spiridonov's notable recognition includes: Best Lawyers in America — Mergers and Acquisitions Law; Lawyer of the Year — Mergers and Acquisitions Law (San Diego).

Education

J.D.
University of California Berkeley
- 2002

Awards

Best Lawyers in America — Mergers and Acquisitions Law
- 2026
Lawyer of the Year — Mergers and Acquisitions Law (San Diego)
- 2014

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