Oh geez MW--
Those pictures are to die for.
It's so hard to give advise on a forum as you are the only one that can experience their behaviors first hand.
Judging by the picture of Molly placing her paw on Sassy's neck, I would say O.K...I'm sold
but as noted, you are the one ultimately that will have to make a decision.
Looking at all the pictures, my one Gryphon has just as much energy as Molly & Sassy combined. When we had Gryphon and our GRD, Bailey, they would both also play under the table, growl, snap, bark but it was just their way of having fun
It's nice that the Bylaw Officer is patient in allowing you to make a decision. Perhaps a sleep over should be the next step