Yes, it just depends on the type of arrangement that can be agreed upon.
Joint legal, and limit joint physical. see link below
Should not affect it, and besides, it's for the kids benefit.
Only after demonstrating a pattern of frequent contact
Usually, yes; however, some parents with joint custody pay support.
To do anything possible to get joint physical custody.
No. If the biological parents have joint legal custody, the step mother has no legal authority over the child whatsoever.
If both of the parents have a joint legal custody arrangement, you have to give the noncustodial parent that information. If you have sole custody of the child, you do not have to share that information with the noncustodial parent.
no see links below
Joint custody is a court order whereby custody of a child is awarded to both parties. In joint custody both parents are "custodial parents" and neither parent is a non-custodial parents, or in other words the child has two custodial parents.
The parents have assumed joint custody.
You need to have BOTH parents sign if they have joint custody.
There are no distance requirements for joint custody.