The "Final Walk-Thru" form is actually called VERIFICATION OF PROPERTY CONDITION (BUYER FINAL INSPECTION) CAR Form VP Revised 4/07.
The purpose of this inspection is to satisfy the Buyer regarding the condition of the Property. Buyer and Seller understand and agree that unless otherwise agreed in a the prior contractual agreement between Buyer and Seller: (i) a final inspection is not a contingency of the purchase and sale, and (ii) the inspection or waiver is not intendedd in any way to alter the contractual obligations of Seller regarding the condition of Property to be delivered to Buyer at possession date. The inspection or waiver is not based upon any statement or representation by Broker(s), Associate-Licensee(s) or brokerage employees. The undersigned agree to hold Broker(s), Associate licensees and brokerage employee harmless from any liability, claims, demands, damages or costs arising out of the contractual obligations of the Buyer and Seller concerning the condition of the property.
1. Buyer acknowledges that: (1) Property is in substantially the same condition as on the date of acceptance of the offer to purchase/sell; and (2) Seller has completed any repairs, alterations, replacements or modifications as agreed to by Buyer and Seller with the following exceptions:
THERE ARE SEVERAL BLANK LINES TO WRITE IN ANY EXCEPTIONS FOLLOWED BY ->
The evaluation of the condition of the Property, including any items listed above, is based upon a personal inspection by Buyer and/or tests, inspections, or other studies performed by inspector(s) selected by Buyer.
----AT THE END OF THE FORM THERE IS SOME DISCLAIMER LANGUAGE -----
So, having outlined the form the Buyer will sign and to answer your question, the simple answer is NO. Howvever, it really depends on what they are requesting. Is anything left undone that was supposed to have been corrected? Is it reasonable? or are they just trying to get a price reduction through the Final Verification? And finally, do you want your transaction to close? I personally detest a "bait and switch" tactic where a buyer gets all the way to the end of a deal and then makes demands or they will hold back funds.
If the Purchase Agreement and any Counter-Offers and/or Addenda were written and agreed to correctly and all the contingencies have been removed, both the Buyer and the Seller need to perform to the letter of the Agreement.
Now, if the property condition has substantially changed - that's a different animal - as someone said earlier if something was working during the inspections and now does not - that's a problem. And, for example, if there has been a roof leak since inspections or the wild fires charred the siding of your house - that's a problem and these things would need to be corrected at your cost prior to closing.
The written Purchase Agreement is exactly that. I sincerely hope that all contingencies are removed if you are at the final walk-thru stage.
Talk to your Realtor or their Broker if not satisfied with the answer you receive. If you are still not satisfied, you'll need to consult with an attorney as we (Realtors) cannot provide legal advice. The last thing you need or want is legal proceedings in a Real Estate transaction- it holds up the sale and no one wins.
Best of luck,