We strive to make the impossible possible
As an award-winning full-service international law firm, with offices in the UK, European Union, Costa Rica and Mexico, we are dedicated to achieving the best possible results for our clients worldwide
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 approximately four bar admissions. He is also registered with the Solicitors Regulation Authority as a Foreign Lawyer authorised to practise in England and Wales.
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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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Regulation
ABS&P International Law Firm is the legal services division and trading name of Alexander Byrne Sidhu & Partners SA("ABS&P") 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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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.
Our Services
Litigation & Dispute Resolution
We service a wide range of contentious and non-contentious business which include financial services, healthcare, trusts /asset protection matters. As lawyers practicing internationally, our scope for assistance is worldwide.
Corporate & Commercial
We are active in the field of international corporate and commercial legal solutions and serve the UK and Americas in particular. We are particularly experienced in the fields of financial services, trusts, employment, IP, corporate governance and regulatory issues.
Immigration & Family
Our immigration & family law services cover a wide range of matters that include human rights, child abduction & custody and a variety of associated issues. Read our Disclaimer here for United Kingdom immigration matters.
Healthcare & Medical Malpractice
ABS&P Medical is our specialist heath-care division that delivers superior legal services to both claimants and defendants in cases concerning personal injury and medical malpractice.
Investments, Capital Raise & Asset Recovery
Our lawyers have excellent experience in supporting private clients looking for innovative solutions for multi-million investments (particularly in real estate assets) capital raise and the recovery and general management of their assets.
Criminal Defence
We have successfully represented clients in private prosecutions in both civil and common law jurisdictions. We have also provided advisory and assistance in serious criminal defence matters especially those involving multiple jurisdictions.
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.