As always it is important to know that things work differently in different states. My answer refers to how things commonly work in North Carolina. If by "pre-inspection work" you mean items that you made the seller aware of due to a home inspection then it depends on what the particular items were. If the items identified were "built-in appliances,electrical system, plumbing system, heating and cooling system, roof coverings, porches, decks, fireplaces, flues,crawl space, attic ventialtion systems and water and sewer systems. " These items shall all be performing the function for which they are intended and not in need for immediate repair. There also shall be no friable asbestos or existing enviromental hazards and no unusual drainage or excessive moisture adversely affecting the structure.
If the seller was notified that these types of items were not functioning and they did not make the required repairs then the buyer should be able to get his earnest money back. It is also important to know that there area contractual deadlines regarding when the repair requests have to be responded to by the seller and the buyer. Another important note is that when youare negotiating the repairs you should state in the repair contract that the work should be completed prior to the closing date.
Best of luck!
Century 21 Becky Medlin Realty