Not sure why when you ask advice that you wouldn't reply to questions as the visas for HK and China in your post were very relevant to where you would live. People don't mind helping but can get frustrated when people ignore them. The good thing is you did come back to update.
Hey, Gruntfuk, what do you care about the man's visa and passport? He only asked about housing in Shenzhen. Who r u, the self-appointed chinese gestapo, aka, Communist Party PSB? Get a life and leave others be, if they are not affecting U. That's my opinion.
Gruntfuk is a pretty good nickname though.