Sometimes it is necessary to change the custody agreement for various reasons.  These changes can sometimes be more urgent than other types of modification, especially if one parent feels that his or her child or children are in danger for some reason.  Changes in circumstances that could result in the child suffering or being put in a situation that is not conducive to stability and routine in a child’s life could be grounds for custody modification.
A change in custody agreements is a difficult request unless it can be proven that the changes are within the best interests of the child(ren).If the primary residence of the child has become an environment of any type of abuse, whether it is verbal, sexual, physical, emotional or otherwise, this can be grounds to change the custody to a safer and more stable environment.

The courts will always look at the best interests of the children.