Paul, I use Attorney Charles McBride in Stillwater, Oklahoma # 405-624-9990 and he recommends Landman Monte Hoffman phone # 405-842-1930 with Easton Land Services. Mr. McBride’s expenses are reasonable. You may be able to do what is known as a ‘Simple Probate’ which costs less than regular probate. Costs vary depending on whether there are any title problems found.