I am from Taiwan. Relocated here last year.
Here's the tw expat site that you can check out. i think you can get your answers from this site.
http://www.forumosa.com/taiwan/
Assuming you will be going to Taipei. There are 3 main
International Schools there (American, European, and Japanese). I am not aware of any other
International Schools in other cities. Not sure about the school fees tho.
Rnt is cheaper than here. But of course it varies depending on location and apartment size. Not all apartments have facilities though. I suggest you ask the company hr for help on finding an apartment. Most people don't speak english
Hope this helps. Let me know if you have other questions.