Welcome back! How old is Monty, again? Over 15 lbs? Big fella
Mandie retained her top canines, too.
As for the biting...the only thing I can suggest (and you have probably already tried it) is everytime he bites, sternly say "No bite" and then give him something it's okay to bite and say "Good Boy." If that doesn't work, you may want to try "time outs"..everytime he bites, say "no bite" and put him time-out behind a gate or in his crate.