> (1) Can I change his name, or would that be too difficult for an 8-year-old
> training, even though he doesn't seem to have behavior problems, because he
> doesn't even seem to know "sit."
learning experience for you, a good way for the two of you to bond and a
great way to establish your roles with each other.
> away for his old owner?
discipline, attention, exercise and food and it shouldn't take too long.
Try to stick to the same schedule every day. Dogs not unlike kids thrive
> (4) How strict should I be with him in order to teach him that I'm the leader?
> Should I expect him to do what I say all the time?
training. He is adjusting to you as much as you are to him. Only give
him basic commands and I believe you should make him obey but do so
happily. Make it a fun thing to do. Use treats as rewards to make
everything a pleasant experience. Do not scold or punish when he doesn't
obey, just withhold the treat.
Hope this helps some.