After months of Michael wanting talks and "all it takes is one phone call", it seems odd that he would threaten to walk away over such trivialities.
Someone is pulling his strings, I reckon.
Only possible explanation for me. I do feel a bit for Michael though. He's stuck in the middle a bit and in a no win situation. If the deal is good then mystery backer will move forward and take the credit. If it turns out the offer isn't good when they get into the detail then the backer will stay in the background and let Michael pick up the flack.
One question that does come to mind is why this wasn't channeled through the trust, which would be the obvious choice. Reasons for this I can think of:
1. Offer is not good and trust didn't want to be associated with it.
2. Offer is not genuine and is just meant as added propaganda. Maybe there are not really any funds or possibly no real backer (although I don't think this is true).
3. As an individual Michael was seen as an easier target than the trust and is being used.
4. These are people Michael knows personally or has found himself, the offer is good and CCFC will go back to the Ricoh (I'm sure everyone hopes this is the correct reason).