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Leahy Lewin Lowing Sullivan Lawyers


Leahy Lewin Lowing Sullivan is an independent Papua New Guinea based commercial law firm advising a wide range of investors, institutions and government in Papua New Guinea.  The firm’s major areas of expertise include corporate advisory, banking and finance, energy and resources, construction and infrastructure and government and commercial advisory work.

The four partners of the firm have practised extensively in Papua New Guinea (and Australia) and have significant legal and commercial expertise in the areas in which they practise.

Our Firm

Leahy Lewin Lowing Sullivan is a Papua New Guinea based law firm specialising in commercial and corporate, banking and finance, energy and resources, construction and infrastructure, telecommunications, commercial litigation and tax for companies operating in Papua New Guinea. 

The firm commenced operations in 2000 when well known PNG lawyer, Peter Lowing, started his own practice in Port Moresby. Peter was subsequently joined by Simon Nutley (2005) and John Leahy (2007).  In September 2010 Stephen Lewin and Michael Sullivan, both having previously practised in Papua New Guinea, joined the firm as Partners. In 2014 Peter Lowing returned to the firm after a lengthy period practising in Fiji.

The firm has agents and relationships in various parts of the South Pacific and South East Asia as well as Australia and other parts of the world.

Industry knowledge

Partly due to the extensive experience of our lawyers and the maintenance of up to date databases and libraries, our lawyers have specific industry knowledge gained by many years of working and advising in those industries, the benefit of which will be available to each client.

Organisation Profile

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Michael Sullivan



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