What are resources for identifying different options for setting up an international investment fund?

I'm looking to do some investment in some specific countries in Africa. While I have financial/legal contacts on the ground in those locations, I am based in the US and will likely incorporate here. I'm starting from zero in terms of experience and will be focusing on small opportunities to cut my teeth. Where can I find some resources to do my initial homework in terms of fund structure and regulatory requirements on the US side?