Well if you mean by a bit dodgy that al Chinese schools irrespective of type care more about money than teaching than yes, they are all a bid dodgy I think. You just have to find the "least" dodgy out of them all, that can be difficult.

You need to ask a lot of questions, were some good ones posted on here a while back, don't know what happened to them, I'd do a search.

Schools are profit driven, you just need to find the ones that are run the best. If a public school, wel, they still make moneyh off of their English teaching programs, it's just nothing like what private schools make.

Basically your best bet is to stay away from private schools, and go with Public Universities and such. The pay will be lower, but so will the work hbours, unless they are very greedy. I have seen some colleges asking 20 hours a week and only offering 4,500 or less, that's crap.

Be careful though, and as others have said, make sure you see pictures of the apartment before you go, at the least.

Saying you have no schools to work at now is absurd though, use google man, and do some research, don't expect us to do all your work for you. Thgere is plenty out there, you just need to put in the time and effort.