Katie Longstaff

Call: 2013


Katie joined chambers upon successful completion of her pupillage in 2015, having been principally supervised by Marc Brown.

Prior to coming to the Bar, Katie worked at the UN Tribunal for the Former Yugoslavia, where she assisted in the drafting of the Vlastimir Đorđević judgment. Subsequently, Katie worked at a management consultancy firm as a business analyst and contract manager, where she was responsible for interpreting complex termination and payment clauses in an IT supplier contract worth £12,000,000, on a pan-European project for a travel agent client.

Katie regularly advises on contractual and insolvency matters. Katie is particularly interested in the applicability of international and EU law to consumer and commercial agreements. For instance she has advised on the applicability of the 1999 Montreal Convention and EU Regulation 261/2004 in compensation claims against a well-known airline.

During pupillage, she assisted John Randall QC and Marc Brown on a 5-day trial concerning the law of easements.

Recent Experience:

Katie regularly represents clients at CCMCs and at trials on both the small claims and fast track.

She regularly represents clients in possession hearings and charging order cases, particularly those with an Insolvency Law element.

Katie often appears for clients in winding-up and bankruptcy proceedings, and has experience in responding to last-minute applications for annulment of bankruptcy orders.

During pupillage, under the supervision of Marc Brown, she gained experience in several cases including:

  • An application for an order that a transfer of assets be set aside pursuant to sections 284, 339 and 423 IA;
  • A response to an appeal seeking to challenge a bankruptcy order (sections 267(4), 271 and 282(1)(b) IA and the ambit of the judicial discretion were considered);
  • When a bankrupt can challenge a trustee’s remuneration, in accordance with rule 6.142(2A) of the Insolvency Rules 1986 (IR) and 303 and 363 IA. Rule 6.142 IR had no application to the case due to the date of the petition;
  • An application for an administration order;
  • The dissolution of an unincorporated association and the vesting of its property; and
  • A restriction deemed to have been registered on the land register without reasonable cause.


  • 2012 – 2013: Bar Professional Training Course (Very Competent)
  • 2006 – 2010: Law with European Legal Studies LLB ELS (Hons), First Class, University of Durham
  • (2008 – 2009: Leibniz Universität Hannover, Germany)
  • Commercial Law Prize, Durham University (2010)


German – conversational/business level

My Expertise