How do you think having the skids full time will affect your home life and have you told your DH?

This isn't a court issue as much as it is a family problem. You and DH need to have some real talks maybe in the presence of a therapist. DH wants his kids, which is understandable but it feels like he needs to step up as a parent. I'm assuming you already care for the two by yourself for the most part? Are you a stay at home parent or do you work also? Yes if they move it then it would add to your work load but maybe it needs to be looked at already.

Also SD is 5. If you guys can get her away from mom being the main influence you never know what kind of child she will be. Children are largely influenced by their environment. If BM is lying and manipulative you can bet the daughter is observing things she shouldn't which is showing her that her behavior is acceptable. Given you guys don't even have 50/50 you have less positive impact then BM.

Of course you can't tell your DH his child is evil, but you can maybe say you can't handle taking care of them more than you already do, and that if he wants to have his kids full-time, he will need to take care of them, or provide child care for them.

Why does he want them full time?

Is mom abusing them? Is she unstable?

Unless he can prove BM is unstable or abusive, he is more than likely not getting full custody. The most he will get going to court is going to be 50/50 unless BM decides to give him custody.

He will have to show the burden of proof that she is unfit.

The sad truth is we could all end up with the Skids FT. All of us who are step parents to minors. BM here has been homeless 2x in a year and a half and if my calculations are correct, she will be homeless around January.

BM could die...take off, you name it, then you are stuck with the brats Full time.

It really really sux and I can totally relate.

You need to ask your DH why he wants them. Are they being neglected? Do they want to switch homes? Is there an actual reason for the switch other than your DH wanting them on a whim to play house? It’s best y’all have this discussion before he pays a crap load in lawyers and court fees just for a judge to tell him no.

Why does your DH want the children full time? What right or evidence does he have to prove that the BM is an unfit mother? He will need to if he wants FT or sole custody of the children. If she contests, are you both ready for the cost of this fight?

What is his plans for child care with his two children? He wants them full time, is going to look after them or dump them on you? What is he going to do to take care of his children? Until this is clarified, he has no business in looking at sole custody having the children full time. Whether the children are with BM or with you, they still arent with HIM.