Sultan holds an LLB in Commercial Law from Sultan Qaboos University, College of Law, and an LLM in International Trade Law from the Université Paris-Descartes (Paris V). He has also completed executive programmes at the London School of Economics and Political Science. He is licensed to appear before all Omani courts and is the co-founder and Managing Partner of Al Khalili, Al Ghailani & Co. LLP (K&Co), where he leads the firm’s Litigation and Arbitration practice.

His practice is focused on construction and international arbitration, where he acts as lead counsel in high-value FIDIC-based disputes involving extension of time entitlements, forensic delay assessment, programme review, and complex quantum claims. He has represented major international and Omani construction companies in both domestic and international arbitration proceedings, and has activated Dispute Adjudication Boards, appointed arbitrators through the Omani courts, and obtained final awards on behalf of his clients.

Sultan also advises and represents clients in complex commercial litigation before the Omani judiciary, covering shareholder and corporate disputes, real estate and Integrated Tourism Complex development matters, and administrative proceedings involving challenges to ministerial and regulatory decisions.

Beyond contentious work, he advises on a range of transactions including joint ventures, public-private partnerships, privatisation contracts, and investment structures. He has led insolvency and restructuring mandates, including the liquidation of a five-star hotel and the financial restructuring of a branded restaurant operation in Oman.

His clients include government-linked entities such as OMRAN and ASAAS, major international construction companies, leading Omani contractors, and corporate clients across multiple sectors of the Omani economy.