Louisiana PDL Help

I have read different info in different threads and I am just trying to straighten it out (in my head). Does an internet payday loan company have to be licensed in the state I live in (Louisiana) for me to borrow from them or do they just need to be licensed in the state they originate from? Also, do they have to follow the laws of my state (max of $300 loan with no rollovers, etc) or do they only have to follow their state laws? Finally, how do you find out if a pdl company is licensed and what state they are licensed in? I did a search and didn't find anything on Cash Net USA, my cash now, Cash Central and East Side Lenders.

I have 4 internet pdls and 3 store front ones. I wish I would have knows all the trouble they are, I would have figured out another way to get the money I needed.