Former Leyton Orient chairman Barry Hearn says his dog could have negotiated better than venue bosses after details of West Ham's Olympic Stadium contract were published, reports BBC Sport.
The Hammers will pay £2.5m rent annually but will not have to fund police, stewarding, heating, pitch maintenance, or even corner flags.
"My dog could have negotiated a better deal for the taxpayer," said Hearn.
West Ham said it was "a great deal" for the club and the public.
The rent will be halved to £1.25m if West Ham are relegated.
The Hammers have paid £15m towards the £272m costs of transforming the stadium into a football venue.
Hearn, who unsuccessfully tried to get the Hammers to groundshare with Orient at the Olympic Stadium, told BBC Sport: "It's a hugely beneficial deal to West Ham and good luck to them.
"They've negotiated a good deal. I can't say the same for the LLDC who should go back to negotiation school.
"Frankly it was a hot potato that [London mayor] Boris Johnson and the LLDC wanted to get rid of. They wanted to close a deal at any price and they will say 'quite rightly because we didn't have anyone else'."