Have got your Loan in place and released the Loan Contingency?
Have you done your Inspections and released the Inspection Contingency?
Have they done the Appraisal, it came in Ok and you've released the Appraisal Contingency?
Have you read the Preliminary Title Report, signed it and returned it?
Have you gotten the HUD1 from the Title Company so that you know how much to bring to the Closing?
Why isn't your Realtor answering these questions for you?