Jason Kallis > Keystone Law > London, England > Lawyer Profile

Keystone Law
48 CHANCERY LANE
LONDON
WC2A 1JF
England

Work Department

Construction / property litigation

Position

Jason is a disputes lawyer specialising in insurance, construction, product liability, and property litigation. He acts for blue chip construction and property companies, insurance companies and their Insureds, high-net-worth individuals, retailers and estate managers.

Jason has extensive experience advising on product liability and professional negligence claims. In particular he advises on all insurance policy issues that arise out of disputes concerning products and professionals, including the recovery of insurance premiums on behalf of insurance companies and insureds.

He also has a wealth of experience of disputes concerning high-end residential properties, office developments, and small to medium sized civil engineering projects.

He advises on business disputes concerning small and medium sized companies, particularly in relation to partnership disputes, purchase agreement disputes, shareholder disputes, tax related disputes and general commercial litigation issues faced by such entities.

He has provided non-contentious advice on property developments to lenders, landowners, contractors and developers, and has advised on and drafted building contracts, warranties, and professional appointments.

Career

2014 Keystone Law Consultant Solicitor
2012-2014 Plexus Law Associate Partner
2009-2012 DAC Beachcroft LLP Associate Solicitor
2004-2009 Mishcon de Reya | Associate Solicitor
2003-2004 Sherrards | Associate Solicitor
2000 Qualified as a Solicitor
1998-2003 Elliots Bond & Banbury | Trainee Solicitor then Assistant Solicitor

Lawyer Rankings

London > Insurance > Product liability: defendant

Keystone Law is well versed in dealing with a variety of product liability claims stemming from international trade, frequently advising foreign insurers and manufacturers. ‘Knowledgeable, super-diligent‘ practitioner Elaine Chan has a strong track record in high-value product liability claims, including multi-jurisdictional disputes. Antony Colman, a specialist in advising German clients, and Jason Kallis, who stands out for his roster of Japanese and South Korean clients, are also key contacts.

London > Insurance > Clinical negligence: defendant

Keystone Law‘s insurance department represents healthcare professionals in a variety of clinical negligence matters, including natal, spinal and cognitive injury claims, and cases arising from neuro and cosmetic surgeries. Tracy Sell-Peters is experienced in spinal and orthopaedic surgery claims, while Jason Kallis is skilled in medical product liability and cosmetic surgery error cases. Joanne Staphnill is active in litigation involving psychiatric claims and surgical errors. Matthew Trinder, who joined from Browne Jacobson LLP in January 2024, brings a wealth of experience in representing private insurance and independent healthcare providers.

London > Insurance > Insurance and reinsurance litigation

The insurance practice at Keystone Law acts for insurers and reinsurers across a number of sectors including shipping, aviation and life sciences. James Crabtree advises on both insurance and reinsurance claims, coverage disputes and contractual issues, while James Healy-Pratt is an aviation expert and has assisted insurers with claims relating to aviation accidents. Jason Kallis is well versed in complex insurance litigation and Elaine Chan handles product liability claims.