my mother is trying to sell our home and my father wants to take her for everything she has
location: australia, qld
for context; my mother and father separated over 2 years ago (they are not divorced officially) as soon as she asked for divorce he bought a plane ticket to another state and flew there the next day, since then he has made little attempt to keep in contact with me and my sister nor attempt to provide anything or offer for us to visit. another thing thats crucial is that before they separated my father wasn't able to hold a job for himself for around 2 years by his own fault leaving my mother to pay every bill, mortgage etc she picked up 2 jobs to keep us afloat whilst my father sat on his ass the entire time berating her and using marijuana (medically given) before falling into a drug psychosis that made my mother be done with him. throughout these two years of my mother being separated she had been suppling him money for awhile to keep him afloat out of the good of her heart before she couldn't anymore because the house and bills were becoming too much. the house has been entirely funded by her inheritance and her blood sweat and tears.
cut to maybe a month ago she decided she wanted to move to get away from foul memories of being in this home for over 10+ years now and she wanted to get him to sign off of it peacefully and offering him a portion of the funds (20k? i think) and he decided he wants to fight this and he apparently has contacted a solicitor and my mother is still struggling to keep us afloat let alone be able to handle the fees this outcome could be, i feel helpless considering i am still a minor and she doesn't know what could be done or how to move forward with this smartly any and all advice would be so helpful. I hate seeing her fall apart like this, it hurts