Johnson Winter Slattery
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Johnson Winter Slattery is noted for its ability to act on both sides of complex disputes. The practice is led by the Sydney-based Mark Easton, who brings over two decades of experience in high-value disputes, and Paul Reidy, a market stalwart described as ‘very experienced' and 'commercial’. Robert Johnston brings a 'strong intuitive grasp of legal and strategic issues', and Frances Dreyer 'understands the commercial issues which her clients face'. Andreas Piesiewicz has taken lead roles on some of the firm’s most high-profile mandates. Clients note the firm’s ’collaborative and open-minded approach’. The team expanded in 2025 with the arrival of Sophie Dawson from Bird & Bird.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
‘I would describe the JWS class actions practice as providing the most "bang for your buck" in the industry. We have engaged them on class actions (plaintiff side) and have found them to consistently provide solid, commercial and practical advice with great service levels on competitive budgets.’
‘Andreas Piesiewicz is a stand-out class actions Partner - he is sharp, prepared to roll his sleeves up and is very outcome oriented. He is very responsive to client queries and proactive in driving matters forward. ’
Key clients
- Qantas Group
- Jetstar Airways
Work highlights
Acted for Qantas in defence of class action proceedings about its Flight Credits programme for flights that were cancelled during the COVID-19 Pandemic.


