An adoption order can only be challenged within six months after it has been filed. Once all parties have signed the final agreements, and six months is passed, the order is final.  An adoption order can only be successfully challenged if it can be shown that, at the time of adoption, the right conditions were not met. For instance, if a biological parent did not give consent or if the adoptive parent did not meet the required conditions, the adoption process may in jeopardy. Otherwise, the adoption order is final.