John is the Principal of John Peter Munnull Lawyers which was founded in 2011 and is a member of Pacific Legal Network.

John is from Millep Village in Jiwaka Province the Highlands Region, Papua New Guinea and is fluent in tok pisin and Jiwaka language. 

He has over 19 years experience in practicing law in Papua New Guinea, including working in-house with some of the country's largest trading and telecommunications companies before setting up his own legal practice. John's expertise lies in commercial litigation and he has significant experience in commercial property, industrial relations, banking and finance, customary land acquisition as well as general commercial litigation. 

John works closely with clients to resolve their legal issues in a timely and efficient manner. 

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