In both cases, you must provide initial capital from an overseas bank account into the WFOE bank account based in China.
Unless something has changed within the last month, you don't need to deposit the registerted capital when you first open the WFOE. You tell the goverment how long you need to invest the registed capital, such as 10 years, and then you have that long to deposit the cash from overseas.
You must find a Chinese citizen to serve as your primary contact or liaison. This person will be expected to receive updates and notices from the Chinese government.
With a Joint Venture, yes. But with a WFOE, no Chinese staff or representatives are required. A foriegner can be responsible for all aspects.