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Thaddeus Oh
Special Counsel | Singapore
Secretary Muneerah Banu Mashuthoo
Operating as Withers KhattarWong LLP in Singapore.
Thaddeus is a special counsel in the dispute resolution team at Withers KhattarWong LLP.
His practice spans a broad range of civil and commercial litigation and arbitration, with particular depth in trusts, estates and inheritance disputes, shareholder and minority oppression actions, contractual and fraud claims, mental capacity matters, and cross-border disputes. Thaddeus regularly advises and advocates for significant individuals, families, and corporations in complex, high-value, and multi-jurisdictional matters, including disputes touching on assets and proceedings across Singapore, England, and the wider Asia-Pacific region.Thaddeus also has substantial experience in professional negligence, insurance, maritime and admiralty, family, company, and defamation matters, and has assisted clients with non-contentious work such as probate and administration, as well as guiding parties through mediation.
Experience
Track record
Class action lawsuit against a leading international bank
Acted for clients in a class action lawsuit against a leading international bank which concerned complex and multi-layered investments connected to the multi-billion-dollar Bernie Madoff Ponzi scheme. The trial involved significant expert evidence on investment due diligence and lasted for more than 70 days.
Complex and high-value mental capacity proceedings
Defended a client in complex and high-value mental capacity proceedings concerning important questions about mental capacity law in Singapore.
Cross-border boardroom dispute
Acted for an SGX-listed company in a cross-border boardroom dispute involving novel issues concerning the enforceability of "floating" governing law and jurisdiction clauses.
Cross-border claim involving allegations of misrepresentation and fraud
Defended a client in a high-value cross-border claim involving allegations of misrepresentation and fraud; successfully set aside a Freezing Order and an Anton Piller Search Order.
Cross-jurisdictional probate dispute
Represented a client involved in a factually complex cross-jurisdictional probate dispute involving an estate with an estimated value in the hundreds of millions of pounds.
Disciplinary proceedings against a medical practitioner
Acted for the Singapore Medical Council in disciplinary proceedings against a medical practitioner.
High-stakes claim for conversion, breach of directors' duties, and fraud
Defended a client in a high-stakes claim for conversion, breach of directors' duties, and fraud concerning complex historical transactions and cross-border issues.
High-value minority oppression family dispute
Defended clients in a high-value minority oppression family dispute involving a Singapore property development and investment group.
Admissions
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Advocate and Solicitor, Singapore (2015)
Education
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University of Warwick, LLB
Languages
- English
Memberships
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The Law Society of Singapore and Singapore Academy of Law
Key dates
- Year joined: 2018