Boston United's future is in doubt after talks to save the club collapsed.
Leeds-based consortium Standing Alone Limited are seeking to complete a takeover of the club, who have until June to pay a £1m tax bill.
But Standing Alone allege their due diligence team had found discrepancies in accounts dating back to 2001.
The club was then owned by the Malkinson family, who described Standing Alone's claim as "nothing more than mischief-making."
The Malkinson family still own the club's York Street stadium which Standing Alone is trying to buy.
A Standing Alone spokesman told the Press Association: "If the Malkinson family have called off negotiations it is solely because they are seeking vacant possession of York Street to sell to property developers.
"However, for their plan to work, it unfortunately means that Boston United will cease to exist.
"Therefore, we are continuing to try to convince them that the survival of Boston United is key in the interests of the community and the town of Boston.
"In Standing Alone's view, the Malkinsons are holding out for an unrealistic price for York Street and jeopardising our plans to save the club."
However, the Malkinsons insist they broke off negotiations with the consortium weeks ago.
A spokesman for the Malkinson family said: "The family do not accept the claim that they are seeking too high a price for the ground.
"The Malkinsons broke off talks with Standing Alone some time ago. There is no prospect they will be restarted.
"Standing Alone's claim appears to be nothing more than mischief-making."