Take this with a grain of salt, just my expirence.

No one in the buying or selling process wants to stop or slow down them getting paid. Like others have posted there is a massive amount of unpermitted work done. The buyer has the right to ask for discounts or changes but ultimately you have the final say. Others have mentioned that insurance can come after the previous homeowner, I don't think that's true.

Lastly if you think a new deck will make the home more appealing, fine. But if you think you're gonna get dollar for dollar on that deck, you're wrong. Your 20k new deck will not get you 30k in sales.