There are 4 different levels of boxes (all keys are located on the floor infront of each stack of boxes)...
90 boxes @ GM skill level... llocated on the 3rd floor...
90 boxes @ 70 skill level... located on the 3rd floor...
90 boxes @ 50 skill level... located on the 3rd floor...
90 boxes @ 25 skill level... located on the 3rd floor...
The reason for the four different levels of boxes is to give all lockpickers in training a chance regardless of their current skill level... also the house serves as a fully functioning mall with over 50 vendors to shop from... one last thing before I forget , each row of boxes also has a book to the far left telling you what lvl boxes that row consists of... and as for the rules I only have but one , before you leave...
plz re-lock all boxes that you picked...