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William Kontaxis

BBus, JD, MTax

Special Counsel - Sydney

Areas of Expertise

Corporate & Commercial Law, Mergers and Acquisitions, Finance


William is an experienced corporate transactions lawyer and represents both private and public sector clients operating across a wide mix of industries. He is a commercially-focused problem solver and acts in all aspects of corporate transactions, including:

  • mergers and acquisitions
  • corporate structuring
  • capital reductions and share buy-backs
  • private capital raisings
  • private lending and security arrangements
  • finance facilities
  • shareholder and joint venture agreements
  • shareholder disputes
  • commercial agreements.


William’s experience includes:

Mergers & Acquisitions

  • advised one of Australia’s biggest independent hydraulics and water business on a majority sale to Allegro Funds and a subsequent bolt-on
  • advised Regional Radiology Group on its sale to I-MED Radiology, a medical imaging and radiology clinic network
  • advised the owners of a market-leading Australian pharmaceutical product on the sale of its business to a listed New Zealand healthcare products wholesaler and distributor
  • advised the owners of a national wholesale tyre distributor on the sale of its business to a trade buyer with extensive national and international operations
  • advised a first-time investor on his acquisition of a bespoke booking service website and business


  • advised Japanese-headquartered insurance group Tokio Marine on its acquisition of a specialist underwriting agency operating in the bank assurance market from management shareholders and Insurance Australia Group
  • advised Japanese-headquartered insurance group Tokio Marine on its acquisition of a specialist underwriting agency in the accident and travel insurance space from Insurance Australia Group
  • advised a privately-owned US business on its acquisition of an Australian based global manufacturer of products for the irrigation and outdoor lighting manufacturing sectors
  • advised a US technology business on its entry into the Australian market through the acquisition of a respected IT services provider.

Banking & Finance

  • advised a well-known private lender on its acquisition, refinance and construction loan and security transactions with property developers
  • advised a leading FMCG business on a $50+ million finance facility from a Big 4 bank
  • advised a property developer on a $100+ million finance facility from an overseas lender
  • advised a leading property developer on multiple acquisition and refinance facilities from various private lenders across its property portfolio
  • advised the Malaysian branch of an international bank on security arrangements with an Australian guarantor.


  • advised a leading property developer on the establishment of a managed investment scheme
  • advised a prominent Australian gemstone dealer on a share buy-back and share subdivision
  • advised the major investor on the establishment of a joint-venture for the launch of an innovative online business
  • advised a leading Australian steel distributor on a complex corporate restructure.


Law Society of New South Wales


20 April 2022 - Knowledge

Lenders beware: Independent advice certificates not a substitute for proper due diligence


A recent High Court decision has provided a helpful reminder that independent advice certificates are not a tool for lenders to bypass proper due diligence on prospective borrowers and guarantors.

25 August 2021 - Knowledge

You e-complete me: Key tips to smoothly settle a virtual M&A transaction

#Corporate & Commercial Law, #Mergers and Acquisitions

With M&A completions moving virtually, we shortlist five key tips to help you sail through the final stages of your deal.

21 October 2020 - Knowledge

Business sale on ice? Defrost it with these five tips

#Corporate & Commercial Law

Did your business sale fall over because of the pandemic? Does that mean the deal is dead in the water? Not exactly. We outline some tips for reviving an aborted deal.

11 August 2020 - Knowledge

Directors duties still relevant: A friendly reminder in the age of COVID-19

#Corporate & Commercial Law, #Corporate Restructuring and Insolvency, #COVID-19

As the COVID-19 pandemic continues to have far-reaching consequences, company directors must continue to ensure they understand the duties they owe to their companies, shareholders and creditors.

28 July 2020 - Knowledge

No excuse for flawed fund advertising and disclosure materials during COVID-19

#Corporate & Commercial Law, #COVID-19

If your managed investment scheme is advertised as ‘high yield’ or ‘low risk’, now is the time to reconsider your advertising material, website and product disclosure statements to avoid ASIC’s enforcement action.

Upcoming Seminars