Among those scary monsters visiting us every year, some must have been accustomed to us after several visits. If they wish to stay in US after the Halloween and work as foreigner from the Otherworld, what work laws need to be made/changed to accommodate these guests?
Note: I'm asking because my acquaintance asked about his prospect on working there after the next Halloween. As a werewolf, he needs a good job to feed his pack of 5. His friends may ask to come, too, if the government willing to accommodate them and protect their rights as a law-abiding citizen. Don't worry about the human, they are accustomed to meat steak and bacon. In fact that's why they want to stay there!
Their main concern are safety, discrimination, and their nocturnal tendency.
Update: Answers ideally should include what law that may prevent them from staying and working for 1 year. They do not have to cite the exact wording of the law, but it will be nice to do so.
Some already mentioned immigration law. That will be great if you can include what is needed for the werewolves to become a legal worker in US. What occupation is not needed, but still it will be nice if you provide that.
I'm thinking about law about protected class. Would it be required to include "race" as protected class? Let's assume that the government will try their best to accommodate these guests, but without breaking the law (by altering them or make exception). The law should also be able to accommodate future visitors from the Otherworld.