what case should i file against my husband and his mistress?

good day po seeking for an advise regarding my situation po, anong saktong kaso ang isampa ko laban sa kanila i go a copy na sa live birth ng bata at pumirma po yong husband ko at yong mistress pwede ko bang gamitin ang birth cert ng bata against them? makukulong ba silang dalawa? yong binili po ng husband ko na lote para sa kabit niya makukuha ko ba yon? at nag live in po sila. salamat po sana mabigyan niyo ako ng advice kung ano ang dapat kung gawin.

kung magfile ako ng concubinage against them makukulong ba silang dalawa? pero wala pa akong balak mag file ng annulment laban sa husband, i want him to file against me d naman ako yong may anak sa iba at nanglalaki?

concubinage and ra 9262. whether the case will prosper depends on the evidence you will present. Be careful of using the birth certificate though; you have to explain how you got it because it is illegal for unauthorized persons to access birth records.