Halima has expertise in commercial transactions having worked at leading law firms and institutions in Kenya such as Ahmednasir Abdikadir & Company Advocates, Harrison Kinyanjui & Co. Advocates, Takaful Insurance of Africa and the Capital Markets Authority of Kenya. She further has expertise in energy and environmental justice, having partaken in the analysis of environmental impact assessment project and study reports of extractive and infrastructure projects and their license conditions, and having assisted community groups in enforcement of environmental compliance, and in otherwise mitigating the impacts of these extractive and infrastructure projects hosted in their areas in Kenya and beyond, as part of a team of lawyers at Natural Justice: Lawyers for Communities and the Environment, and Legal Response Initiative, hosted at Simmons and Simmons LLP, U.K. She has expertise in legislative drafting and policy making having undertaken her articles of pupillage at the Parliament of Kenya and having drafted numerous Bills therein as well as having worked at the State University of New York’s USAID/DFID funded Parliamentary Strengthening Programme and Agile and Harmonized Assistance to Devolved Institutions Programme focused on building the legislative capacity of Parliament and the County Assemblies in Kenya. She was involved in setting up the inaugural County Liaison Office in the Parliament of Kenya and pioneered the inaugural county legislative attachment programme between the Senate and county assemblies in Kenya. She is a competent legal and social sciences researcher.