Probate does not automatically stop a foreclosure in Nevada.
However, there are circumstances where a foreclosure can be stopped while the probate is pending. One method involves filing a petition in civil (non-probate) court. This should not be handled without an attorney because there are complex legal arguments required, but this is usually successful.
These methods will allow the executor to sell the property for a higher price than a foreclosure sale would bring, which benefits the estate, as well as correct errors in the payment history that often occur during a person's last illness.