Amanda Staveley has urged both MPs and Newcastle United fans to keep pushing for the £340million takeover of the Magpies to be pushed through.
Supporters are already making a coach journey to London later in July to protest about the silence from top-flight officials.
The Ripon financier joined forces with Mike Ashley and called for the Premier League to agree to release the findings and arguments from the double-barrelled legal battle with the top-flight.
Newcastle Central MP Chi Onwurah contacted both the Secretary of State for Digital, Culture, Media and Sport Oliver Dowden and Premier League supremo Richard Masters about Newcastle United's arbitration hearing.
Now Staveley feels that fans, media and MPs need to keep the momentum going.
Speaking to Sky Sports, she said: "The MPs in the North have been incredible - and not just in the North of England.
"Everyone has.
"We've been so grateful for all the support - the letters we've had - and I would urge them again.
"We have to keep going and going and I've seen some responses coming from Chi recently and she's been incredibly supportive as has the entire community so we want more of the same."
And on the Newcastle supporters, Staveley said: "I would also like to thank very much the Newcastle fans.
"The tens of thousands of letters I've had....literally tens of thousands of letters.
"We so want to be able to respond to everybody and we just want to say thank you very much for everything that you've done to help try to get this investment made."
