William Wastie is the Head of the Professional Practices Group and one of the UK’s recognised leading experts in the field of LLP and partnership law, advising national and international professional service firms from all disciplines.  He is described by both Chambers UK 2018 and The Legal 500 2017 as "the doyen of partnership law" and rated also as a "Star" individual in the sector in Chambers UK and recognised in The Legal 500 Hall of Fame.

William was involved in the LLP movement from the outset and has also led on some of the major developments arising out of the Legal Services Act 2007.  He specialises in international mergers and de-mergers, partnership downsizing, governance, profit sharing, management issues and firms' internal partnership arrangements and strategic issues, as well as the management of distressed partnerships and assisting in the use of partnerships and LLPs in corporate structures.  He also has a leading contentious practice, advising on the most difficult, confidential and sensitive partnership disputes.

William is a former Chairman of the Association of Partnership Practitioners and is on The Times Law 100 Panel of leading practitioners.  He previously practised at the Bar.


"One of the most outstanding partnership practitioners in the market"

Chambers UK (2012)

"The doyen of partnership law"

The Legal 500 (2017)

Chambers UK (2018)


Professional memberships
  • The Association of Partnership Practitioners