On a sheetpan lined with parchment paper, lay down 1 sheet of filo and brush with butter. Repeat process with 3 more sheets. Cover remaining sheets with damp towel and set aside. To make filling place the lemon juice and zest, honey, cinnamon, apples, and chopped nuts and gently heat for 3 minutes set aside to cool. Spread 1/3 of mixture onto buttered filo stack. Top apple mixture with another stack of buttered filo. Repeat process until mixture and filo is gone (there should be 3 layers). Bake in a preheated 350 degree oven for 1 hour. Mix sugar, honey, water and lemon and bring to simmer. Remove lemon rind and pour over baklava. Let soak overnight, cut into squares and serve.