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ABS&P International Law Firm
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Welcome to our Senior Team.
Our international practice is supported by a senior select group of distinguished Senior and King’s Counsel who are eminent independent counsel, each specially associated with the firm and its international client work. These practitioners bring substantial experience across domestic and international matters and are specially panelled to provide independent specialist advice to the firm's clients, particularly in complex cross-border matters involving multiple jurisdictions, international transactions, disputes and questions of comparative or international law. Their involvement enables the firm, where appropriate, to draw upon senior counsel of recognised standing and experience while preserving the independence of their professional judgment and advice. Depending upon the requirements of the engagement and the applicable professional rules, our Associate Partners & Independent Counsels may provide specialist legal opinions, strategic advice, dispute and litigation support, advocacy, or other senior counsel services.
All member of our community, whether serving as lawyers, non-lawyers or contractors, are required to abide by our Rules of Professional Conduct and Ethics as set in our General Terms and Conditions ("GTC"). 

Board of Partners

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Managing Partner
Dr. Andre Edward Alexander, LLB, MA, SJD
Andre is an experienced English common law barrister and solicitor with multiple bar admissions who specializes in UK and international litigation, providing clients with strategic solutions for complex disputes and cross-border transactions. He is President of the Board of Advisors at ICDRO - International Commission of Dispute Resolution Online.
James is a leading English barrister and Jersey Advocate. He has multiple bar admissions and is highly experienced in complex international financial disputes. James is able to engage clients with multijurisdictional and complex issues in the field of trusts, financial and banking law.
James Corbett KC, FCIArb
Senior Associate Partner
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Mr Castro is a highly experienced Costa Rican lawyer and full-service practitioner specialising in corporate family and regulatory law. He and his litigation team handle matters covering the entire scope of Costa Rican law.
Jose Martinez Castro
Senior Associate Partner
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Contact a partner

Practice Director

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Anne Regier, LLB, Cert. Justice (Harvard), Cert. Finance (Cantab)
Anne's background is in IT services and legal practice. She manages our team of remote Practice Support Associates and provides administrative backup for the Partners. She is a former legal consultant at a top-tier German firm and was a Mediation Awards Judge (2020) and Contributing Editor for Sweet & Maxwell Legal and Professional UK for its energy law journals (Energy Law and Regulation in the European Union). She is competent in 6 languages including English, German, Russian and Spanish. Anne is a former Fellow of the RSA.
Innovative Cross-border Legal Solutions Representative Offices UK: Enterprise House, Adelaide St., Belfast, NI London /Europe: Represented by associate law firms Central America: Edificio E Santa Ana San Jose 00001 CR Contact Worldwide: +44 7463 572 573(we do not take unscheduled calls) absp(@)abspinternationallawfirm.online Regulation ABS&P International Law Firm (“ABS&P”) is the legal services division and trading name of Alexander Byrne Sidhu & Partners SA. ABS&P is registered with the Solicitors Regulation Authority of England & Wales (SRA) under ID Nr.: 8010339 as a law firm not subject to SRA regulation. Alexander Byrne Sidhu & Partners SA is a corporation registered with the National Registry of Costa Rica under number 3-101-814796, and duly enrolled with the Costa Rican tax authority for the provision of legal and allied business services. The firm operates under the Commercial Code of Costa Rica and is subject to the regulatory oversight of the Ministry of Economy, Industry and Commerce (MEIC). The firm is structured for operation as a “not for profit” organisation. ABS&P’s lawyers are admitted to practice in the jurisdictions they serve. Non-lawyers are supervised by lawyers.
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