There are a set of forms you have to fill out.
1. the judge can detemite the house value. And then you have half and he has half. But you can ask judge order you to stay in the house with your child until kid turn to 18. And then you give his money. if you sell house, you will have to give him his money regardless the age of child. This is common in WA state.You have to do all the repairs since that si your house. You just get kind of free loan from your LG.
2. yes, you will get 撫養費. But this can change every year.