Osasere has an LLM in energy environment and natural resources law from the University of Houston, Texas. She obtained an LLB from the prestigious University of Benin with a second-class upper grade and was called to the Nigerian Bar in 2012. Prior to joining Perchstone & Graeys, Osasere worked as a legal/admin officer in a company where she provided excellent legal advisory services to clients, as well as performing administrative duties. A senior associate in the firm, Osasere continues to harness her corporate law experience in providing legal advisory services to clients, while working with members of the team to grow operations in the Lagos and Benin offices. 

As team leader of the firm’s private client group, Osasere is involved in a trust litigation that encompasses assets in different jurisdictions. Also, she was part of the team that assisted in creating an offshore trust structure for a private client. She is also an ardent member of the real estate, corporate and commercial, and energy and infrastructure departments of the firm. Osasere is a member of the Association of Professional Negotiators and Mediators, as well as the Nigerian Institute of Management.