Since you haven't mentioned all the details, it's hard for me to give you a good answer. If your friend needs help, I think the best option is to contact someone who has a good amount of experience. For example, for me, jeffreygrossdds.com was super helpful, and he gave me all the information and support I needed. I'm not sure if he knows the details about Nigeria, but I think it's worth getting in touch with him. At least, he will listen to your friend's plans and might give her his point of view.