This is a tough question under any circumstances let alone the one your family is going through. \n\nFirst check with the providence you are in and ask the magistrates exactly what your MOTHER is entitled to, since you are over the age of 18 and not legally a deed holder in the real estate, it will have to be your mother who does the asking and who would legally gain anything from the divorce. \n\nAlso check into whether Australia has any alimony laws, [law libararys are alwasy a big help online] and since your father makes more then your mother, if they do have alimony then she would be entitled to a percentiage/payment on a monthly basis from your fathers wages providing she doesn't remarry. \n\nIt gets really tricky here because it really depends on the laws of the country as well as the indiviual laws of each state/providence so collectively all will determine IF and HOW much your mother will get or is entitled to. \n\nSo whatever you do, SEEK AN ATTORNEY IMMEDIATELY. \n\nDivorce is NEVER the time to try to skimp on fees or to try to represent yourself or your family....an attorney is not only knowledgable in the laws of each state/providence and country but they also have access to hidden or obscure laws and loopholes which will gain you or entitled you to more then meets the eye per se. \n\nSo again; never guess and or take ANYONE'S [including mine] words at face value...seek counsel ASAP. \nGood Luck.