my sister was married in 1981 . after 24 years of marrige ,he found that his husband was having extramarital affair . she is having two children . she is working in a govt psu and managing all home expenditure from her salarty. when this affair arose , she opposed it. the family members of the husband supported him n he started living seperately in another house. my sister brought up both the children ,educated them n now both r working. daughter is married. she took many loans for their study, marriage and now for reconstruction of house(approx. 45 lakh). both husband and wife r living seperately since 2006. there r two houses . one is in both name where she is living with children. in another house , he is living alone. the girl whom he had extra marital affair has got married now n lives in her sasuraal.
question is that, now she wants to take divorce from him. she has completed all responsibilities towards her children. please suggest and advice that how the property will be distributed and maintenance as she is a working lady. what should she do now.