One of the biggest issues to be decided when you separate is usually what to do with the family home.  If it is rented you will need to decide who is to remain living there and how the other person is to be rehoused. 
If the property is owned, you will need to consider whether one of you is going to stay there and buy out the other person or whether the property is going to be sold and you will both move.  
We can help you work through the figures to find the most appropriate way to ensure your children have suitable accommodation in which to spend time with both of you.