If you want to be more pro-active - drive your vehicle to that vacancy -Talk to as many neighbors as you can - let them know that you are interested in that property (or others that they may be able to refer you to) some neighbors won't cooperate with you since they may think you are a bill collector.Get the tax ID of the ownershipGo to white pages - search for the ownersPut a notice on the door for the owner to call youCheck to see if it has housing code violationsLiens - see if you can buy the lien and foreclose (or take an option to buy the lien - forecloses on your option)Check to see if it is in Tax Sale - contract the tax sale purchaser to see if you can take assignment of their positionCheck to see if it is in foreclosureMake sure you look at the back of the houses - talk to the neighbor at the rear of the housesFind out if it has been listed - by whom and for how long - call the real estate agent (they are the ones who know how to contract the owner) ask the agent "are you still accepting offers on that property?"

@Heather Rudy connect with @Justin Cooper . 

Look in midtown or Cooper young.

I think what you are looking for is someone trained in the ways of real estate investing - an agent that will:Introduce you to FSBO's - Expired Listings and other real estate opportunitiesWill be your fiduciary representativeWill make offers for you on suitable real estateWho understands creative financing; delayed settlement, seller assisted financing, assignment, wholesaling, REO, tenant selection, soft money mortgages, tax salesWho will be responsive to your financial goals and a person of integrity and trustHelp with direct mail and street marketing to locate transactionsHousing and rent court marketingAbsolute aware of financial and contract clauses as well as contract engineeringCan assist in - delayed settlement - automatic extension, performance mortgages, subordination, principal mortgages, options and joint venturesAware of bidding on REO, forclosures, tax sales and public auctionsUp to speed on commercial real estate, lots and land as well as businesses with real estateHow should you treat this wonderful person (if you can find one) -They should have a commitment from in the form of a Fiduciary Buyers Brokers AgreementYour agreement to pay them a commission on any non-listed deals they bring youA bonus agreement for great deals that you closeA gas budget - or a cash payment for gas Kind words and respectTo be sincere and active with the agentRespect from youFirst class training on how to represent youSometimes an equity interest in the great deals the agent has initiatedListings when you are ready to sellYour cooperation - all your financials, tax returns and other information that will help your agent close dealsA few free lunches ----Good luck --- Charles

If they become so bad that they just don't cooperate, then file for eviction to cut your loss.

Inform them that you will expect their cooperation in showing the apartment to perspective tenants.

You can contact him directly and try to work out some sort of deal to get the lien released prior to close, but if he knows you're going to close he has little incentive to cooperate and it sounds like he knows the game better than you do.

I'm not really considering buying it, but proposing some form of cooperation.

Commissions just aren't big enough to make it worthwhile going down the path of cooperative selling and commission splitting which is what the MLS is really all about.

The owners lack of cooperation should have been your first clue something was going to be wrong.Due diligence must never be put aside and ignored just to get paperwork signed.Good luck to you,friend.