My husband abandoned me and my daughter what are the laws about that In Las Vegas nv?

You do not provide enough information to even begin to provide a meaningful response.  "What are the laws" as to what?  Custody, visitation, support, divorce?  Something else? You can find some background at: http://willicklawgroup.com/child-custody-and-visitation/ http://willicklawgroup.com/child-support/ Consider having a consultation with a family law specialist to go over your specific facts and circumstances.