Honestly, you should try to stick to one in-tekst citation formatting format in your tekst. So either everything "Georges (1996)" or "(Georges, 1996)" not both. It helps readability for your audience.
Anyway, the space comes from the field and can't be removed directly. However, there is a workaround. See [https://bibword.codeplex.com/discussions/208897]
Anyway, the space comes from the field and can't be removed directly. However, there is a workaround. See [https://bibword.codeplex.com/discussions/208897]