Your W has thrown everything at you. What do you have to lose by standing firm on boundaries? If she threatens to call the cops or whatever, just say "Sure, go ahead." Then if the cops shows up, just say that "I am sorry that W called you here. She's upset because I am firm on a co-parenting schedule for our son. It's as simple as that."
The cops will chuckle and question W. Then W will lose her ground.
Again, what do you plan to do about the schedule and finances? You've procrasinated long enough since you've moved to the condo.
Funny that W calims that you left her "homeless" when she had been plotting her exit strategy with the OM all along. Whack!