I got to talk to Hussain a little bit yesterday afternoon, but got some sad news - I asked him if there were any updates with getting a visa, and he told me it did not work, an invitation is now our only option. As far as I'm aware, this can only be done through his country's embassy, and the closest one I found is in Los Angeles, which is pretty far from me and I can't drive.
Now, one of my friends from abroad is now living in Los Angeles, so he may be able to help, but I haven't discussed it with him yet. Hussain and I didn't really talk about our options yet anyway because he was so tired (with it being Ramadan right now, he has to wake up really early in the morning to pray and eat before the fast starts for the day). We should be able to go over our options sometime today, hopefully.