Buying foreclosed home- question for Real estate professionals?

So we are buying our first home which is a bank owned foreclosure and I need help...I would like to know how I could eliminate some of the stresses?

I know its a tough market now, but we've been in the escrow for 2 months. We signed our final pile of docs two weeks ago and seller who is the bank has yet to sign off on their end. The title company can't move on without their signatures and we can't move on with anything. We can't get planning on moving out of this place, planning on remodeling, etc. Its been so stressful and finally when I got relieved when the docs were signed and I was patient for a week but don't understand why its taking 2 weeks to sign the docs. The seller's agent says she did everything on her part and pretty much said to our agent 'don't call me everyday. I did everything I could'. We are kept in the dark.

We are at the point where we are ready to back out. I've been loosing sleep over this 'not knowing'. We are considering signing a notice to perform form but our agent told us that this could sometimes push them to get things done but other times it can backfire too.

Please help!