I know packing and moving is a hassle, but your current landlord doesn't sound like he's that great, and cheaper rent is always a good thing. I'd make sure that I got a clear understanding of what was involoved in "managing" the other building from the new landlord in writing, just so that you know you can handle it, and then move if it's all ok.

Doesn't seem to me to be much upside in staying where you are.

--splitimage