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Rafael M. Langer-Osuna


Rafael Langer-Osuna’s practice focuses primarily on commercial litigation matters including international disputes involving issues of choice of law, conflicts of law, the act of state doctrine, comity, sovereign immunity, arbitral award recognition, and judgment recognition and enforcement issues. Rafael also has experience handling environmental, property and energy litigation matters, including cases involving nuisance and trespass claims, zoning issues, and diminution in value issues.

He represents clients before state and federal courts. Rafael also maintains an active appellate and pro bono practice.

Rafael is a member of the Dade County Bar Association, Florida Bar Association and a couple of committees of the American Bar Association (ABA). Rafael serves as a project manager for a couple of committees of the Dade County Bar Association and as the content chair for the Website & Social Media Subcommittee of the ABA’s International Litigation Committee.

Supplementing his legal education, Rafael has also received a Masters in East Asian Studies from Duke University, a Masters in Cross-Cultural Moral Development from the University of California at Berkeley, and a certificate in Chinese and Environmental Studies from Nanjing University of Chemical Technology. Rafael is fluent in English, highly proficient in Spanish, proficient in German, and has a working knowledge of Mandarin.

Representative Experience

    • Securing dismissal of claims brought against a Latin American nation by several companies and two individuals on grounds of foreign sovereign immunity and the act of state doctrine.
    • Litigating a dispute involving the ownership of profits from Bolivian and Argentine companies.
    • Assisting a multinational bank to resolve an investment suitability dispute brought by Peruvian clients.
    • Assisting in the recognition of an arbitral award in favor of a British sports club against one of its players.
    • Assisting in defending on appeal an order granting discovery assistance in a foreign proceeding under 28 USC §1782.

    Other Matters
    • Defeating class certification in litigation resulting from efforts to reduce its consumers’ energy use on behalf of a major public utility.  
    • Obtaining dismissal of claims for nuisance and trespass resulting from the purported emissions of an allegedly defective pumping station on behalf of a pump manufacturer.
    • Securing dismissal of claims and then sanctions against a company attempting to bring a defamation suit against an Internet backbone company.
    • Uncovering the identity of an online defamer and assisting client to bring suit to recover attorneys’ fees from the defamer.
    • Obtaining dismissal of a government contract bid dispute suit for failure to exhaust administrative remedies.
    • Precluding a shareholder from enjoining a merger for purportedly improper disclosures.
    • Obtaining dismissal of all claims against a subset of directors and officers sued in an adversary action in a bankruptcy proceeding.
    • Achieving a favorable settlement on behalf of a pro bono client in her suit against the US.

    • Co-author, “Pending Supreme Court Cases Could Reshape the Scope of Federal Preemption of State Law Claims,” Squire Sanders Litigation Update, Fall 2010.

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    T +1 305 577 4723


    Duke University, J.D., 2009
    Duke University, M.A., 2009
    University of California, Berkeley, M.A., 2006
    Carnegie Mellon University, B.A., with honors, 2002


    Florida, 2011
    U.S. Dist. Ct., S. Dist. of Florida


    • English
    • German
    • Mandarin
    • Spanish

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