Award-winning, Full-service International Law Firm, Asset Recovery and Protection Specialists
We strive to make the impossible, possible

Welcome to ABS&P International Law Firm, an award-winning, full-service international law firm with offices in the UK, European Union, Costa Rica, and Mexico. Our particular specialty is the recovery and protection of large assets for corporate clients worldwide. With a proven track record in cross-border and national asset recovery from loans, mergers, acquisitions, and complex corporate deals, we turn challenges into triumphs.
Led by Dr. Andre Alexander, an experienced lawyer with 17 years of expertise in the UK and Central Europe in asset recovery and protection, our firm is gaining momentum worldwide in this field, delivering strategic, results-driven solutions. We strive to make the impossible possible, safeguarding your investments and assets with precision and worldwide reach.

People, Regulation, Associations Awards & Recognitions
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Dr Andre Alexander, Barrister, Solicitor, Managing Partner
Our firm is led by Dr. Andre Alexander, Barrister, Solicitor, and Managing Partner. Dr. Alexander is a seasoned international lawyer with multiple bar admissions and particularly experienced in asset recovery & protection. He is registered with the Solicitors Regulation Authority as a Foreign Lawyer authorised to practise in England and Walea.
His full bio is linked here. You can visit our People Page for details of other senior ABS&P members.
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Regulation
ABS&P International Law Firm (“ABS&P”) is the legal services division and trading name of Alexander Byrne Sidhu & Partners SA, 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). ABS&P is also registered with the Solicitors Regulation Authority of England & Wales (SRA)under ID Nr.: 8010339 as a law firm not subject to SRA regulation. ABS&P’s lawyers are admitted to practice in the jurisdictions they serve. Non-lawyers are supervised by lawyers. The firm is structured for operation as a “not for profit” organisation.
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De Jure Chambers
De Jure Chambers Limited, a firm of solicitors regulated by the Solicitors Regulation Authority in England, is our preferred associate for cases requiring the services of a full-service law firm registered in England.
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Litigation Firm of the Year
In 2023, we were recognised by Corporate Live Wire as Litigation Law Firm of the year.
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Innovation Excellence
New World Report recognises ABS&P as the most innovative cross-border law firm in Costa Rica in 2023.
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Diligent Award
In 2020, Diligent recognised our Managing Partner, Dr Andre Alexander, as an honoree in its general counsel modern governance category.
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Corporate Law Firm of the Year - Costa Rica
For the year 2024 /25, ABS&P was recognized by CorporateLiveWire Global Awards as Corporate Law Firm of the Year - Costa Rica.
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UK Armed Forces Covenant
We support the UK Armed Forces covenant by recognising the value serving personnel and military families contribute to the UK's business and the country at large.
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Royal Society of Medicine
Our Managing Partner, Dr. Andre Alexander, a medical law specialist, was honoured with readmission to Fellow Membership of the Royal Society of Medicine, a leading learned society for healthcare professionals, in October 2024
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Mast Cell Action (UK Charity)
Dr Andre Alexander, ABS&P’s Chairman and Managing Partner serves as legal advisor to the UK charity, Mast Cell Action.
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RE&B Attorneys
RE&B Lawyers are our preferred associates for assistance in cases in Costa Rica where litigation is involved.
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ICDRO - International Court of Dispute Resolution Online
ICDRO is a leading online private international dispute resolution court. It is a division of ABS&P.
Helping Children in Need
We are proud to support the Anak Terlantar Foundation, a small but deeply committed organisation working to transform the lives of children who have been orphaned, abandoned, or otherwise left without care. Since its establishment in 1995, the Foundation has offered safe havens and brighter futures to vulnerable children through direct support for projects, homes, and individual needs.
Through its Thrive Social Justice Fund, ABS&P contributes grants to Anak Terlantar and helps raise awareness of its vital work—particularly in Indonesia, where the Foundation currently supports medical initiatives and provides annual funding to the Eagle’s Nest Orphanage in Semarang. We are inspired by the Foundation’s hands-on approach and its unwavering commitment to dignity, care, and opportunity for every child it serves.