DAL OFFSEASON: Trade & FA | Mavs "mostly done...but you never know."

[michaeltex]

3 questions for a Monday morning:

1. Is the $115MM salary cap a firm number now? Or is it still under negotiation?
   
2. What is the timing on some of the player option/team option decisions? Mainly wondering if there is a clock ticking on when THJ has to make his decision. I assume all the capholds are instantly erasable at any time by the team. 
   
3. I see V Oliadipo has announced that he expects a max salary for his next contract. He's a good player, but that seems a stretch to me. With that expectation, doesn't it make him almost untradeable?