Buying a mixed use out of State with a Partner-Need HELP?

[Adam Glassman]

Quick question. I am a pretty active investor in the NYC area and am looking to buy this small mixed use bldg in Germantown+Philly=Gentrification for 40K....Its me and a partner 50/50 each on this deal. We live in NYC - property is in PA and my partner also has a PO BOX somewhere in PA near his country house(FYI). Although I have asked a couple of my attorneys-CPA's and other investors i wanted to get some other opinion becasue you will always get a different answer. I dont know yet but once in contract I might wholesale this, I might close and do the rehab, i might keep as rental or sell as a turnkey rental.
So the quesiton is: what state would you open the corp or LLC, what are the cost to open corp/llc in PA(I know NY), what kid of tax Advantages-Disadvantages opening a new company - whether it be NY or PA with a partner and any other pertinent info I shoudl know. I do know alot but not everything and want to make the right decision. thanks