you can certainly petition... I know Cori's ex only gets D7 for 2 weeks time in the summer
we have primary physical custody with her mom getting 50% visitation however she sees her every 3rd weekend of the month and split holidays
we are going back to court this summer to push for supervised visits she is diagnosed unmedicated bi-polar has tested positive on all drug tests ordered by the court has swiped D7 and refused to return her has not held a job in over 3 years has filed false police reports several times refuses to bathe D& during her monthly visits the list goes on and on
our attorney says we are in for a battle
you can certainly ask for 4 weeks...what does your lawyer say?