We strive to make the impossible possible
As an award-winning full-service international law firm, we are dedicated to achieving the best possible results for our clients worldwide

People, Awards, Associations & Recognitions
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People
ABS&P International Law Firm is led by its Founder, Chairman, and Managing Partner, Dr. Andre Alexander, an experienced English common law barrister and solicitor practicing internationally. He is registered with the Solicitors Regulation Authority of England & Wales as a foreign lawyer to practice law in England and Wales and has 4 other bar admissions.
Our firm’s people and organizational structure follow the model of an English barristers' set, with lawyers operating as independents within a collegiate hybrid setting. This structure enables ABS&P to deliver comprehensive legal services of the highest quality and scope anywhere in the world, 24/7. Visit our People page for more information.
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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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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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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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Legal Expert for JustAnswer UK (Legal)
Since 2023, our Managing Partner, Dr Andre Alexander, has served as a consulting lawyer at JustAnswer UK (Legal) which is a trusted online platform providing accurate and timely legal information to customers across the UK. Through this role, he has answered numerous complex legal questions, offering clear and reliable advice to individuals and businesses navigating UK law. To date, he has achieved a positive rating of more than 94% by his customers which represents more than 964 highly successful engagements.
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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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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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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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ICDRO - International Court of Dispute Resolution Online
ICDRO is a leading online private international dispute resolution court. It is a division of ABS&P.
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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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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

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.
Regulation
ABS&P International Law Firm is the legal services division of Alexander Byrne Sidhu & Partners SA (jointly "ABS&P") which is registered in the National Registry of Costa Rica, Number: 3-101-814796, as a corporation delivering legal and allied business services to the international community. ABS&P is regulated under the Commercial Code of Costa Rica. It is also registered with the Solicitors Regulation Authority of England & Wales under ID Nr.: 8010339 (SRA) as a law firm not subject to SRA regulation. Our lawyers are additionally regulated by the regulatory bodies of the jurisdictions in which they practise law.
All ABS&P's members subscribe to its Rules of Professional Conduct & Ethics unless excepted by their bar association, or a court. If you have any complaints about our services, in the first instance, send a message to our Client Relationship Team using our general Contact Form. We respond promptly to all complaints.