Each county may be different, but at least in Howard County (since you and I are both in Maryland) has adopted the 2011 NEC, with a few minor exceptions. 2011 NEC says: "All 120-volt, single phase, 15- and 20-ampere branch circuits supplying outlets installed in dwelling unit family rooms, dining rooms, living rooms, parlors, libraries, dens, bedrooms, sunrooms, recreation rooms, closets, hallways, or similar rooms or areas shall be protected by a listed arc-fault circuit interrupter, combination-type, installed to provide protection of the branch circuit."

.-1-ARUG42C14A Air Handler-1-GSX13042 Condensing Unit (3.5 ton - 13 seer)-Disconnect and remove existing air handler in closet-Install new platform and seal return air chase-Reinstall existing air handler-Repair wiring and reconnect ductwork-Install new refrigerant lines-Remove existing condensing unit-Install new condenser listed above-Reconnect electrical to equipment-Restart system and check operationTotal - $5,450Please let me know if you guys think this is reasonable or if anyone has had experience with this.

There was a "closet" door in the back, and when you opened it, you were looking at the back of the roll-up door. 

Great idea having the closet in there.

Main Level - Open up the kitchen to the LR/DR - Keep the family room seperate2nd level - make it 3 regular bedrooms but rework the hallways and doors to give each room better closet space3rd level - Dormer it out and make that a master suite, you can do a bigger bathroom without moving the plumbing stack and add a huge walk in closet across the hallway

They sell spare strips so that you can reverse course when you want to work from a hallway to room, or back into a closet.Here is the flooring running right in front of the closet (grip strip facing the opposite direction)Measure out a length of the grip strip.peel of the backing and place half lengthwise under the plank- and now you simply reverse right into the closet.Easy peasy.

Dodd-Frank may be applicable selling to a consumer, if it's portable it can fall under the mobile home guidelines.And yes, if its a residence TREC applies. 

I have gotten to the point where I am replacing closet clothes rods with EMT tubing. 

Give them a wet bar where you had an old over sized closet. 

The house is currently set up with large living room w/fireplace, large dining room, 3 bedrooms, mid sized kitchen(with terrible built ins), breakfast nook, one full bathroom, 3 hallway closets, per apartment.