Divorced Parents

[IslandGirl4 0]

My parents are divorced and soon my father wants to apply for tourists visas for him and my two siblings who are under 18 (I am over 18 i am aware i have to do the application on my own). As a result of the divorce (which happened in 2016) he was granted full custody of me, and my mother got custody of my two siblings. However, they spend most of their time with my dad and I and even live at our house since my mother is always 'busy'. My question is, what type of documentation would he need to provide regarding the divorce. If he applies for tourist visas for my younger sibling would he need some sort of letter from my mother giving her permission for this to happen? Would he need to carry his divorce papers? Any information would be appreciated, thank you. 

[Pinkrlion 2,610]

Your father should go back to court and get joint custody of your siblings.  Your mother does have to write a statement that she will allow them to travel outside of the country.  

[SusieQQQ 11,584]

Joint custody is not necessary for a tourist visa. But in the absence of that, or in some countries even with that, your father will almost certainly require some sort of permission to take the minor children out the country from the other parent. Your father needs to research locally to see how formal this needs to be (and whether it needs to be sworn/notarized etc,) as it is dependent on local law.