Modification of existing orders, such as those related to child custody, support, or alimony, generally requires demonstrating a significant change in circumstances since the original order was issued. Courts look for changes like a substantial shift in income, relocation, or changes in the needs or living situations of the children or parties involved. The process involves filing a motion or petition with the court where the original order was made, providing evidence that the modification is in the best interest of the child or necessary due to the new circumstances. Both parties may need to attend a hearing where they can present their case, and the court will decide whether to modify the existing order, considering factors like the child's welfare, financial status, and stability. Legal representation can be crucial to navigate this complex process and ensure all legal standards are met.