Long story short, my ex has the potential to be extremely difficult and lie a lot when it comes to splitting assets in our break up. He has become a drug addict with serious mental health problems and we have a two year old. All his paperwork is in my house still, shall I take copies of things I know he has, assets wise. It's ALOT of money's worth and I am worried he will try and hide it. We aren't married, were together 6 years.