my wfe owns a house with her mother , her mother is not paying any of the taxes , water , or insurance , what can we do leagally to make her pay

Yes there are a few legal remedies to your question. I am basing my answer on the assumption that the ownership is 50/50. Short of selling the house in a partition action, you can talk to a lawyer about bringing an action against her mother for unjust enrichment and for an action in equity to make her mother pay her fair share of the household expenses. You may also consider seeking 50% assuming that you each own half of the house for any money you have paid on her behalf for household expenses in the past.  You will need help with this matter, please consult an experienced attorney.   Walter S. Jennings, Esq.