First-class Legal Services

We provide quick, efficient, expert & premium legal services

We are an indigenous Law Firm with a global reach, outlook and style

our practice areas


We assist our clients with scheduling, budgeting, fulfilling regulatory guidelines, contracting, submitting claims, terminations, and so much more.

Oil & Gas

We advise on legal matters, commercial contracts, and agreements pertaining to the Oil & Gas industry in Nigeria. We ensure that our clients comply with all statutory and corporate governance practices & guidelines across multiple jurisdictions.

Debt recovery

We help our clients (creditors or debtors) come up with strategies either to get back money that is owed to them or to protect themselves from overeager creditors.

Real Estate

We are equipped to prepare and review documents relating to real estate such as purchase agreements, mortgage documents, title documents and transfer documents.

Competition Law

We advise on the structure of commercial or co-operation agreements to ensure they can withstand a competition challenge. We also negotiate clearance for acquisitions, mergers and joint ventures.


We represent plaintiffs and defendants in civil cases and manage all phases of the litigation process from the investigation, pleadings, and discovery to pre-trial, trial, settlement, and appeal.


We represent clients in legal issues concerning the air, land and water. We also handle legal matters concerning environmental rights & international environmental law.


We advise Energy companies, sellers and acquirers, investors, suppliers, manufacturers, and government on energy transactions globally. Making sure that all involved parties are following the proper laws and regulations.


We facilitate negotiation and dialogue between disputing parties to help resolve conflicts outside of the court system.

why they choose us

Diligence & Integrity

We are driven and bound by our core values of Diligence, Integrity, Proficiency and Professional etiquette.

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Innovative Thinking

Our lawyers are known for providing innovative, competent, cost-effective and well-timed solutions.

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At Onnoghen-Theophilus we pride ourselves on our sector strengths which cover diverse areas of the law.

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Our specialist training, in-depth knowledge & experience cover a range of sectors and we are great at what we do.

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We provide unexpected solutions to complex legal problems

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