Legal question?

[madmax]

Half the fraternities on my campus are not recognized by the college.. We are all still operating as normal. We still hold rush, fundraisers, and social functions. We have all been successful. 5 of the 6 largest organizations are unrecognized. Our houses are off-campus and we are not breaking any laws.

Here is the problem.. The school has recently threatoned to expel any student who pledges and unrecognized frat and expel members of unrecognized frats that take pledges.

Is this legal? Aren't we protected by the Constitiution and Freedom of Association? If a college can't stop a student from joining a radical hate group then how can they stop someone from pledging?

I know all the unrecognized organizations are still going to operate. We are going to take our chances, but I want to know the law in case we get busted.

Anyone have any advice? thanks...