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Katherine Sierakowski


Katherine specialises in Commercial Law, Civil Litigation & Dispute Resolution and Family Law. Katherine regularly appears in all Western Australian Courts, including the Family Court, the Supreme Court and the Federal Court.

Katherine graduated from Murdoch University in 2010 with a Bachelor of Laws and a Bachelor of Commerce (Mass Communication). She was admitted as a Barrister and Solicitor in Western Australia in 2012.

Prior to starting Siera Legal, Katherine was the managing partner of MGM O’Connor Lawyers and prior to that the director of a boutique commercial legal firm for four years. Katherine has extensive experience in Commercial Law, Civil Litigation & Dispute Resolution, Family Law and Estate Law.

Katherine approaches complex legal matter with a thorough understanding of the commercial environment. Katherine has real-world business experience in a number of different sectors, including agriculture and family businesses and uses this experience to provide clients with pragmatic and effective advice.

Katherine’s passion is helping her clients to navigate the complex legal world with a focus on prioritising resolving matters where possible by agreement, without the need to proceed to Court.

" Any reference to a "partner" means an employee with sufficient seniority"

Katherine Sierakowski
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