John Conlon

Mayer Brown

John M. Conlon’s commercial litigation and arbitration practice is particularly wide-ranging. He has significant experience in disputes that involve securities, commodities, banking, bankruptcy, hotels, real estate, employment, contracts, and intellectual property lawsuits.

John has frequently represented clients in arbitration and in state and federal courts across the country. He recently completed a three week trial in the Southern District of New York, obtaining judgment in his client’s favor on all counts. Areas of specialty include:

Securities Litigation and Investigation – Advising corporations, underwriters, accounting firms, corporate officers and directors in securities class actions, derivative actions, arbitrations and SEC investigations.

John has recently led the defense of a series of high profile RMBS litigations on behalf of HSBC. Clients include HSBC, the Trustees of Oppenheimer Mutual Funds, Canadian Imperial Bank of Commerce, Twin Labs and Grant Thornton.

Banking, Private Equity and Financial Institution Litigation – Representing banks, private equity investors and financial institutions in litigations and arbitrations involving claims for breach of contract, lender liability, letter of credit disputes, collateral debt obligations, residential mortgage backed securities, derivatives, commodities futures trading, unauthorized trading and SWAP agreements.

Clients include DZ Bank, Lehman Brothers, Chase Manhattan Bank, Morgan Stanley, Fortis, ABN AMRO, Bank of Nova Scotia, the Jordan Companies and Nomura Capital.

Real Estate and Construction – Representing property owners and contractors in disputes over property rights, construction contracts, sales agreements and tax abatements. Clients include Starwood Capital, Morgan Stanley, Lincoln West Partners. W.S. Atkins and the Panama Canal Authority.

Bankruptcy – Representing creditors and debtors in adversary proceedings and plan confirmation hearings, representing trustees in investigation and prosecution of claims. Clients include the Joint Administers of Maxwell Communications Corporation, Bank of Montreal, Fleet Capital, Nomura Capital, Bank of Nova Scotia, Generale Bank and Bucyrus Erie.

John joined Mayer Brown in 1996. Previously, he was associated with another prominent firm in New York. Earlier, he served as law clerk to the Honorable Kevin T. Duffy of the US District Court for the Southern District of New York. In addition to his trial skills, John is proficient in German.

Education :

  • Fordham University School of Law, JD
  • Williams College, BA

Admissions :

  • New York
  • US Court of Appeals for the Third Circuit
  • US Supreme Court
  • US District Court for the Eastern District of New York
  • US District Court for the Southern District of New York

Experience :

  • GUPSCA v. Panama Canal Authority – represend the Panama Canal Authority in connection with a series of disputes over expansion of the Panama Canal.
  • Sparta v. D2 Bank – verdict in favor of D2 Bank following three week trial on claims arising out of decision not to renew credit facility.
  • Adelphia Recovery Trust v. Bank of America, et al. – represent Bank of Montreal and its affiliated investment bank in multi-billion dollar fraud and avoidance claims.
  • Intelnet International v. ITT Corporation and Starwood Hotels & Resorts Worldwide – verdict in favor of defendants after three month bench trial on $1.5 billion breach of contract action for provision of telecommunication and media services to hotels.
  • Codelco v. Lehman Brothers – represented Lehman Brothers in an arbitration under AAA’s International rules in connection with claimed unauthorized trading of copper futures.
  • IPC Corporation v. Metalsa S.A. de C.V. – ruling in favor of plaintiff on personal jurisdiction following one week bench trial facilitated global settlement of contract and tort claims.
  • Samsung v. Banco Weise – obtained summary judgment on behalf of Banco Weise dismissing all claims arising out of privatization of Peruvian steel company, dismissal affirmed following oral argument to First Department.


Rate : $$$

What types of cases Attorney John Conlon & Mayer Brown can handle?
Mayer Brown can handle cases related to laws concerning Banking, Litigation, Construction, International Law, Securities Fraud. We manually verify each attorney’s practice areas before approving their profiles and reviews on our website.
Where is Mayer Brown located?
Mayer Brown is located at 1221 6th Ave, New York, NY 10020, USA. You can reach out to Mayer Brown using their phone line 212.506.2592. You can also check their website or email them at [email protected].
How much would it cost to hire Mayer Brown?
John Conlon lawyer charges are specific to each case. However, they work with contingency fees and its ranges from $$ to $$$. They also provide free consultation [and no obligation quotes] if you are interested to hire.
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