ABING V. WAEYAN (CIVIL)

Any property acquired by common-law spouses during their period of cohabitation is presumed to have been obtained through their joint efforts and is owned by them in equal shares.

Their property relationship is governed by the rules on CO-OWNERSHIP. and under this regime, they owned their properties in common "in equal shares." Being herself a co-wner of the structure in question, respondent, as correctly ruled by the CA, may not be ejected therefrom.