You can wrote a letter to give someone temporary custody but not full custody. That have to go through the court to be valid and also through the court to be changed back. With temporary custody you can end it whenever you want by picking up the kids. How to write a temporary custody letter you find in the link below.
Research Friend of the Court document.
Write to them on your letter headed notepaper
Approved by the court
write a letter and give it to postman :)
Custody is granted by the courts, and that's where you need to go.
give me an answer beh.....
To write a letter like that, look at the answer to: How do you write a friendly letter? That will give you your answer.
How do i write a letter asking permission to leave flyer at a school
How do i write a letter asking permission to leave flyer at a school
How do i write a letter asking permission to leave flyer at a school
give me an answer beh.....
Well, You could just give her sole custody, wait, and then get her to give you sole custody. I am just guessing