FAR 91.109 requires dual flight controls for all flight instruction if either the pilot receiving instruction or the flight instructor is not qualified and current to act as pilot in command at the time training takes place, or regardless of currency if the instructor does not have at least 25 hours in the same model of aircraft (Be35, Be33, Be95, Be55, etc.).
ABS knows of these sources of dual yoke rentals:
Air Mech (580-832-3803)
Woodland Aviation (800-442-1333)
Dave Monti (775-792-5282)
Lawson Barber (559-675-0183)