You can bring a legal action in chancery court (a part or division of county court) seeking an "accounting" of the estate by the executor: that is, to make the executor "account" for his handling of the estate. Executors have a duty imposed by law to act in good faith, loyally, prudently, and reasonably (including in terms of expenditures) vis-a-vis the estate and beneficiaries, and to not engage in "self dealing" (that is, to not look to profit themselves unfairly at the expense of the estate or heirs). If an executor is violating these "fiduciary duties," the court do one or more of: order the executor to do or not do certain things; order the executor to personally repay to the estate amounts he took or wasted or lost; remove the executor and appoint a new one.