Olswang is advising Tottenham Hotspur as the football club considers legal action over the decision to award the Olympic Stadium to West Ham United.

The Premier League club has sent letters before action to the Olympic Park Legacy Company (OPLC), Minister for Sport Hugh Robertson, London Mayor Boris Johnson and Newham Council seeking clarification over the decision and "raising concerns with the processes which led to the award".

Olswang real estate litigation partner Cameron Lawes is taking the lead role for the City firm.

The OPLC has four weeks to respond to the letter, after which Tottenham will decide whether to seek judicial review.

A statement on Tottenham's website said: "At this stage the club has not issued any proceedings against the OPLC or any other party in respect of the decision regarding the award of the Olympic Stadium. Our lawyers have written letters raising a number of concerns with the processes which led to the award.

"The letters also requested – in the interests of transparency – for the provision of certain information concerning the processes, which the club considers that it is entitled to. Tottenham Hotspur will determine its next step as and when it receives a response to these letters."

League One club Leyton Orient is also considering legal action over the decision, with chairman Barry Hearn expressing concerns over the impact of West Ham's impending move due to Orient's close proximity to the Olympic Stadium.

The OPLC's deliberations over the decision to award the stadium to West Ham saw Eversheds, HBJ Gateley Wareing and Trowers & Hamlins pick up associated roles. Eversheds acted for the OPLC, while HBJ advised West Ham and Trowers won a role for Newham Council.

Olswang declined to comment.