I received a notice on my door, that condo I rent is being sold at an auction, unbeknown to me, what are my rights?

You may enforce the terms of your lease for as long as your landlord has the right to possess the unit. Your landlord may also endforce the lease. So contact the landlord, or an attorney who can review the lease and the foreclosure information, and advise you when you could be evicted by the bank. This would typically be 6 months after the sale date. But there are variables. Many times the bank will not request that you leave until they are ready to have it listed for sale by a realtor. This could be months later. However, your landlord could evict you sooner, if you don't pay the rent. So be sure you communicate with the landlord.