
Quoting
cdwjava
It is very likely that the claims, and subsequent investigations that determined the claims to be either unsubstantiated or unfounded (the latter being better), could stand on their own merit to show that the allegations are not to be believed.
It can be exceedingly difficult to pursue criminal or civil action against someone for reporting allegations of abuse or neglect to the proper authorities. The state has a vested interest in NOT potentially discouraging people from making reports if they think that a claim resulting in something other than "substantiated" might be subject to court action. To get any resolution in a criminal or civil court might very well require an admission by the complaining party that they made everything up. Being wrong, or even mistaken, is not generally actionable, and that's if it can be objectively shown that the alleged events did not occur at all. There is also a difference between an event not occurring (unfounded) and not being able to be shown to have occurred (unsubstantiated).
As suggested, this will be best dealt with through the use of an attorney. If the other party HAS an attorney and you do not, then you could lose even if the facts are on your side because you may lack the capability to present your case properly.