McRonald is the principal of Jema Lawyers.

In 2008, he was admitted to the bar of the Supreme and National Court of Papua New Guinea. Since then he has been practising as a litigation lawyer in the Supreme and National Courts as well as the other lower Courts such as the District Court, Provincial Land Court and Local Land Court.

McRonald has extensive experience in civil, criminal and commercial litigation. His experience includes administrative law, constitutional law, criminal law, law on banking and insolvency, land law, company law, law of tort, energy law, property law, law of contracts, family law and human rights law.

Apart from the above, McRonald has practice sole in constitutional reference in the Supreme Court and have also assisted overseas based Southern Counsel on constitutional references.

McRonald also practices in other forms of dispute resolution such as mediation and arbitration, and has experience in handling cases involving industrial disputes. He has also been involved in other law practice related proceedings such as Commission of Inquiry and Leadership Tribunal.

Prior to starting Jema Lawyers in 2012, McRonald began his career with Posman Kua Aisi as a litigation lawyer under the supervision of Mr. Kerenga Kua for over 4 years.