Foreclosure purchase. How to evict current tenant?

[Matt James]

Hey all, I have just purchased a 4 units multifamily property through county auction. Just made the payment but have not received the certification of title yet (taking 3-4 weeks).  I am thinking the tear it down to sell the land.  The current property is in bad physical condition. Please advise what is the correct procedure to evict the current tenants.  They signed contract with the original owner but I have no way to contact the original owner.  BTW I am in Florida. 

Thank you!