How to get in the property?

[Ryan Car]

I just acquired a property through foreclosure over a month ago.  The property I own has a current tenant who used to pay the old owner.  I spoke to the tenant and they had no previous lease agreement with the old owner and just paid month to month.  I then handed them a notice to vacate within 60 days, as I want to sell this property.  I also collected November rent from them.

After I presented the notice, the tenant has not paid December rent and is not being responsive when I try to contact.  I will start eviction once the 60 day notice to vacate is up.

So I'm wondering.  Once I do get the renter out, how do I get in?  I do not have the keys to the property.  Do I need to ask the tenant for a copy?  If it ever gets to the point of a sheriff lockout, do I just bring a drill and drill out the locks?

What have all of you done in an instance like this to get in the property?