German Shepherd Dogs are a great breed. I've had 12 of them. They require much of YOU. Time for training, socialization - lots, and EXERCISE EXERCISE EXERCISE.
An under trained, under-exercised GSD is a nightmare of destruction and mindless territorial and chase drives.
A well trained, well socialized, well bred, well exercised German Shepherd is a joy.
Jaime has a good dog. His dog his lines fairly similar to mine. I tend to prefer harder dogs, not fit for less experienced homes though. More training. But I'm a trainer.
But while OFA and no seizure background, a clear cardiac panel and good breeding are important... Temperament of the parents and proven capacity for work are important.
What you will actually DO, rather than what you intend is in general most important with the breed.
I've seen 10,000$ shepherds go bad simply due to lack of training, socialization and exercise and at some point the owner just gives up. Usually someone or something has been injured.
First you choose wisely, then you do what you have committed to doing and all will be well.
But get one and do not meet it's needs... I've seen them do thousands of dollars of damage to homes and yards, to other dogs, or people.
That's about 25 years of experience in the breed with working, pet and rescue dogs. If you want an SAR dog - get one from SAR parents. It increases the likelihood of the drives necessary FOR SAR. And they are very specific drives. Not every shepherd has the intensity to HUNT for something for HOURS without finding it. That's born not made. That drive cannot be created. It must be born.
Most shepherds will not do SAR, even of those bred from SAR parents, many will not have sufficient HUNT capacity.
In the random pet population the chances are far far less.
Could you get a good pet from your neighbors dog - probably. Working dogs from a pet population run an average of 20%. Working dogs from a working population can run 40-70 even 80%.
For SAR from SAR is the absolute best odds. It sucks to rear something for a job for three years and train like the dickens to find that it will NOT do the work well.
And dogs flunk out of SAR far far more often than succeed.
I have a friend who does evaluation of SAR dogs, has had several nationally recognized dogs and runs an SAR group who can refer you to good breeders.
Those dogs will cost and shipping while successful is a pain in the ass.
But three years of training a dog that will not do the job is exceedingly costly when you figure time, feed, training costs and ending up with a pet taking up SPACE and feed, and having to start again or give up.
I used to train service dogs. Working dogs I am familiar with.