A Father speaking up for his son

It all started back in 2017, a father fearing and concerned about the well-being of his son. When he got his son for his custody time, he was found with markings on his body, what appeared to be abuse. Legal actions were taken, but the father's voice wasn't heard then. Fast forward to 2018, he got his son for his visitation time, with what appeared to be more abuse, but this time even worse, not only hurt his son mentally but also physical abuse, legal actions were taken again. My hometown police department got involved and it turned for the worse. He got physical temporary custidy through an emergency protective order for 5 months. The judge in another parish dismissed everything. Fast forward to the present, he picks his son up with bruises again.
Not only has he suffered with physical abuse but he has also been suffering with verbal and mental abuse. As a very concerned father there's no looking back, but one problem is we're a one income based household raising 4 kids, and trying to scrape together whatever we can for a good attorney to be able to speak on behalf of his son.

All he's ever wanted is for the best interest of his son and for him to be loved and treated like he should be.
Anything helps, and if you can't just please share our story. Be the voice of a 5 year old.