Hello everyone, newbie here. This seemed to be the most appropriate place to post my situation. I welcome any constructive ideas. I am at the end of my rope.

I live with my beautiful fiancé and her two wonderful girls, both between 6 and 8. My fiancé’s has shared custody with her ex (I'll refer to him as DD) who is a drug addict. The kids visit him for half the week, we have them for the rest.

Respectfully, I have stayed out of their business, until I was personally affected.
DD had custody of the girls that weekend and he had let one stay at his mothers (his mentally unstable enabler) and kept the youngest one at his house, where she started to exhibit signs of extreme influenza.

DD was blatantly stoned out of his mind and failed to tend to the child, refused to take her to a doctor, refused the girl’s mother to see her. This went on for hours, until my fiancé drove to his house and rescued the girl. She was comatose and in a pool of sweat. DD was babbling incoherently like a pirate, the only coherent thing he blurted was “you can’t blame this on me.

When I arrived at the ER the girl was exhibiting signs not so much as influenza, but also as if she had been exposed to drugs. Testing proved that she was severely dehydrated and had the mother not rescued her, death was imminent.

The father , DD, failed to show up at the hospital for another 6 hours. When he did he behaved erratically and stayed only 10 minutes. Between the mother and I we basically spent the weekend watching over the girl because he failed to return to the hospital.

Out of curiosity, I searched for him in Google. We were shocked!
We typed in his name before we could finish Google suggested many sites where he has been selling drugs online for years. Looking into these links, I discovered that he is a well-known designer Synthetic Drug Dealer on the internet!

I know what I’m up against now. This guy is not only a drug dealer but a junkie as well. Synthetic Drug Dealers work with unknown chemicals that cannot be detected. But drugs aside, he is an arsehole who refuses to care for his children and is nasty to his ex.

DD has someone helping him with legal issues. He claims to be broke, yet drives a Mercedes and was very “successful” last yr selling his drugs.

He refuses to financially support his children. (So I help her) He is crafty and evades police, DCF and all authorities. The kids are too young to know what’s going on. DD has threatened my fiancé and frequently taunts her that he will never be caught. I am worried more about the kids being exposed to this scumbags life style. He is paranoid that I am going to steal his kids from him.

Druggie Daddy is basically a Disney Daddy. He and his mother (his enabler) spoil the girls. When we get them back they are hyper and devoid of any manners. It usually takes us two days to get them to behave.

My dilemma is: I love this woman and her girls very dearly. The girls lack a real father figure in DD, and I and their mother are their only guiding figures. DD will never stop selling drugs and he is a terrible influence to the children, not to mention their safety.

My fiancé is intimidated by him and weary that the police and DCF have been absolutely worthless in doing something about this situation. I have become aggressive in trying to help her and keep this worthless POS in line as much as I can, without becoming his target myself.

We are seeking to change the legal arrangements and to make DD be fiscally responsible in order to keep the kids safe and sound. But we know there will be retaliations and the law will not help us.

Common sense tells me to run. My heart says to stay and defend our family against this drug dealer and his enabling mother. Should common sense or chivalry prevail?