Beware though, as our legal system is hugely advesarial. What starts out as something amicable, winds up a full fledged war that nobody wins. Each side winds up doing things that they really didn't want to do initially because 'that' is the nature of the system. People start to think and do, via their lawyers, viciuos things because they believe they 'have to' to protect their kids and themselves. I wouldn't wish this crap on someone that I loathed.
"Always go straight forward, and if you meet the devil, cut him in two and go between the pieces." - William Sturgis, clipper ship captain, 1830's.