I know people who had a very drawn out closing for different reasons. Agree that they're trying to get out of paying those taxes, they probably sat on the property and left it vacant for awhile. I would be prepared to have more repairs than you expect for a newly renovated place, since the developers might not be the best. It could still be worth it if it's a good deal with a better interest rate, though. Definitely get a real estate lawyer, and talk to that lawyer about switching real estate agents. I feel like having their agent and yours with the same company is not great in a combative situation. You can eventually force them to follow through on the contract they signed with you, I believe. You may need to escalate, though.