Here is an interesting article on asset protection. It is written for lawyers, but the points are valid for any business or property owner, especially those who operate separate businesses or entities.
http://www.assetprotectionbook.com/LegalTimes_Adkisson_10Mar08.pdf
You can quit claim your interest in the house to a trust set up for the benefit of your children. You may need several attorneys given the complexity of the situation.
Another option is to give the house to the custodial spouse as part of the divorce agreement.
Divorce attorneys are not skilled in drafting trusts. Lawyers specialize just as much as doctors.
be careful here so you don’t wind up with a hostile ex-wife who won’t work cooperatively with a trustee. You could end up with a situation where the trustee can’t get the roof replaced because the trust doesn’t own a majority of the house (only 50%) and the ex won’t approve. Also, neither party can sell the house without approval of the other party. You can’t keep her from moving the kids if she has custody anyway, but she can really screw up the house deal for the kids.
This can get ugly quickly. I always recommend in a divorce to just cut the cord.
just trust my experience on this.