We Won a PA Real Estate Tax Sales - Now What?

[Justin K.]

I am calling on all the experts I know in this field for some advice.

Last night we won a PA Tax Sale property at the Tax Auction.  I know, the whole buyer beware and the risks associated with buying at the tax sale.  We did a ton of research on this property and are confident in what we bought.  The property was owned by a trust and 'vacantish' (i.e. nobody lives there, but a portion of the house was recently rented.  The other part of the house is being used as storage for a lifetime of stuff that the previous owner - trust creator - amassed).  The grass is still being mowed by the beneficiary of the trust, but they did not pay the taxes.  I understand that in PA they have 30 days to contest the sale.  I also have documentation from the county and my photographs of the property being properly posted, so even if contested they will not win.  The county will transfer deed to me on 12/31.  

My question is, I would like to enter the property and secure/winterize the property.  I am not interested in the previous owners personal property, except to someday (after I hold the deed) get a dumpster in there to get it out of my way.  

When can I enter the property to secure/winterize it?  Do I have to wait until I hold the deed, or since I technically paid for it can I go in now/soon?

@Chris K. @David Krulac @Steve Babiak

For some reason David and Steves tags are not working.  But I appreciate your responses in advance.