23 Pa.C.S. § 3309: General appearance and collusion.

The entry of a general appearance by, or in behalf of, a defendant does not constitute collusion. Collusion shall be found to exist only where the parties conspired to fabricate grounds for divorce or annulment, agreed to and did commit perjury or perpetrated fraud on the court. Negotiation and discussion of terms of property settlement and other matters arising by reason of contemplated divorce or annulment do not constitute collusion.