Central Oregon Real Estate Sales and Vacation Rental Properties In 2015, owners Don Bowler and Gary Yoder purchased Howells Realty Group, a long established (since 1994) real estate company with offices in Sisters and Black Butte Ranch, Oregon. Don earned his Oregon Real Estate license in 2014 and is the President of the company. Gary has been a licensed Real Estate Broker in Oregon since 1999 and is the Managing Principal Broker. Black Butte Realty Group specializes in Central Oregon real estate sales, including Black Butte Ranch and Sisters, representing both the buyer and the seller. Black Butte Realty Group manages over Forty (40) premiere Vacation Rental properties and should be your first stop when planning your family vacation.