ADMISSION AGAINST INTEREST:

     The joint affidavits are very solid pieces of evidence in the petitioners' favor.  They constitute admissions against interest made by the respondents under oath.  An admission against interest is the best evidence that affords the greatest certainty of the facts in dispute, (Heirs of Miguel Franco vs. Court of Appeals, G.R. No. 123924, December 11, 2003) based on the presumption that no man would declare anything against himself unless such declaration is true. (Republic vs. Bautista, G.R. No. 169801, September 11, 2007)  It is fair to presume that the declaration corresponds with the truth, and it is his fault if it does not. (Rufina Patis Factory v. Alusitain, G. R. No. 146202, July 14, 2004) Taghoy vs. Tigol, G.R. No. 159665, August 03, 2010, Brion, J.).