German Shepherds are an exceptional choice for their combination of brains, loyalty, capabillity, and even appearence. They also need a lot of room to move around. A large spread with multiple Shepherd sounds ideal.
A good dog deserves a good home built for the dogs’ needs. Those dogs scored.
German Shepherds are often too smart for their own good.
Every single one I have had, we had a face to face talk to settle who was boss. I pick them up by the scruff of the neck and stare into their eyes until they soften and relax. After that, they usually listen. I’ve had many over the years.