Newcastle are keen that a new hierarchy is in place as soon as possible after hopes that a deal would be done by the end of June failed to materialise.
"We are giving interested parties all the help that they need," added Llambias.
The players reported back for pre-season training on the 1 July, although the manager's position remains vacant after Alan Shearer's short-term contract expired.
Any deal of around £100m would represent a significant loss for billionaire Ashley who is estimated to have put around £244m into the club during his time in charge.
When he initially put Newcastle up for sale last September, he hoped to get about £300m. But relegation from the Premier League saw the asking price slashed.
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