Leader of a Big Family Medal

and since each senior has to be higher than it's juniors, you'd have to train those 1000 accs

not much, you can bring the family level down to 20 or so and then have 2 level 20 chars, 4 lvl 19, 8 lvl 18, 16 lvl 17, 32 lvl 16, 64 lvl 15, 128 lvl 14, 256 lvl 12, and 512 level 11.