I need a family lawyer to read through a WhatsApp conversation.

I am currently taking my ex to court so I can have access to my 5 month old son and she has accused me of being controlling and abusive throughout the relationship. This is not true. She was the abuser.
I would like a report written from the WhatsApp conversation proving that I was not controlling and it was in fact her. I am happy to go into detail with the person who accepts the job.