My husband threatened me at the settlement conference that if i did not settle he would evict my daughter.

There is not information to answer this competently.  If all parties are adults, and your husband separately owns the house your daughter was living in, then presumably he has the same rights as any other landlord -- and your daughter has the same rights as any other tenants; some information and forms that might help her are on the Clark County Civil self-help website. Threatening to do something legal, however distasteful, is not "extortion" or "blackmail" in the conventional sense.  Your lawyer should go over with you what options you have; consider them, and pick that which you think best for your self interest -- and do not give up your rights due to pressure related to third parties -- if your husband is willing to estrange his own children to try to pressure you, he is the one that will -- eventually -- suffer for it.