MOTION FOR INTERVENTION CAN BE FILED AT ANY TIME BEFORE RENDITION OF JUDGMENT BY THE TRIAL COURT:

The Rules provide explicitly that a motion to intervene may be filed at any time before rendition of judgment by the trial court. In the instant case, the Omnibus Motion for Intervention was filed only on July 22, 2008, after the Decision of the CA was promulgated on June 26, 2008.  x x x Thus, it cannot be denied that the Omnibus Motion for Intervention was belatedly filed. As the Supreme Court held in Rockland Construction Co., Inc. v. Singzon, Jr., no intervention is permitted after a decision has already been rendered. (A.M. No. RTJ-06-2002, November 24, 2006, 508 SCRA 1, 11 cited in Office of the Ombudsman vs. Sison, G.R. No. 185954, February 16, 2010, VELASCO JR., J.).