Greg,
I'm having the same sort of dilemma with a garage here at the place I'm renting.
The landlord asked me to fix the building up during my hypothetical "free-time" and it's slowly turning into a nightmare!
The last guy that lived here, fancied himself as a bit of a carpenter, consequently, everything remotely made out of wood in this building (concrete block construction) has bent nails sticking out of it.
Not your ordinary nails either, big 6" flat-head ones.
The guy made some pretty scary looking shelving in here too, nothing is square or plumb.
I've got rid of the spiders-web of lamp cords that were in here when I moved in, that supplied all sorts of lights, an old 2-bar heater (!), the garage door opener and a couple of lamp-cord "sub-mains" that head out of the garage and I've yet to trace where they actually go to, I've disconnected them in the meantime.
The garage "tilt-a-door" itself has been struck a few times by a vehicle (from what I can make out) and is rediculously bent out of shape, the guy had tried to repair it with lengths of 4x1 timber and nails and has made it worse, I'm too scared to open it with the garage door opener unit, the door makes some pretty scary sounds even opening it manually.
I'm not going to tamper with the thing, I've heard that them springs they use are liable to kill you if they become un-attached and hit you.
One quick parting question, what is the best type of paint to use on concrete block (cinder block??) walls?, now that the weather is starting to warm up, I'd like to get some painting underway.
Cheers.