I can understand Sisu continuing to sue if it's a short term deal done at arms length.
But if you're asking to enter into a close relationship, that will have to involve full financial disclosure, wouldn't you be asking for a show of intent first?
I can totally understand some saying "do whatever is needed", but I can understand the reluctance to open books for someone currently taking you to court.
However, were Sisu to drop the legal action, that would show trustworthiness and the ball (IMO) would be in ACL's court. Similarly, if Sisu no longer were requesting access to revenues as a starting point, ACL wouldn't have a valid reason to not start talking until the JR is over.
In the interests of speed of resolution, it's far quicker for Sisu to drop their immediate demands (not their long term ones) to facilitate a return than it is for ACL and Sisu to agree on match-day revenues, even if Sisu dropped the appeal tomorrow. Negotiations about the long term viability of the Ricoh and a potential smooth exit can be discussed without further damage to the club.