Epic fail

See if you can sort out a hotel bill, as in the paper work for a hotel stay that you can use to claim back off him. Or at least as ammo. LL sounds like a complete cnut.
Dunno how long your contract is, but by the sounds of it I wouldn't ever pay rent to him/her ever again. They can't evict you without a court order, and that ain't gonna get sorted until s/he's paid compensation for this roof shizzle.

He had an email from me this morning saying there's no more rent til the job is done, and that i'm not paying any of the time while it last. He replied 1 hour ago saying : OK.
: $