The news come just days after West Ham United co-chairman David Gold said that they expected to sign an agreement over the move as early as next week.
The Hammers are the preferred tenants for the Stratford stadium, which is less than a mile from the O’s ground in Brisbane Road, and had been hoping to move in time for the 2015-16 season.
However, Leyton Orient chairman Barry Hearn claims that the bidding process for the stadium was “flawed” and says that proper consideration for a ground-share was not given.
“We’re not interested in compensation. We’re not interested in anything else other than securing the future of Leyton Orient,” Hearn told Sky Sports.
“West Ham with a 30,000-ish capacity are moving into a 60,000-seater auditorium. They’re going to be selling huge discounts to fill up 60,000 seats. We are 750 yards away from the Olympic Park. Any small club would understand that this is going to put us out of business.
“We have to try to survive. We think we don’t do any harm to anybody, West Ham or Premier League, by ground-sharing.
“It’s been done all over Europe, where a big club has ground-shared with a small community club. But nobody wants to sit down and adhere to the rules of teaming.
“This was supposed to be a prerequisite of the whole bidding process. And our lawyers think that they’ve made a major error in not considering this.”
In a statement, the London Legacy Development Corporation said: “We have been notified that Leyton Orient have made the decision to issue proceedings for judicial review.
“Whilst this is disappointing, we believe that our processes have been robust, fair and transparent and that the challenge is misconceived.”
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