The sellers may find that they can not afford the repair or the repair can not be done or it can be done but will take weeks or months. Some repairs that seem small end up being a big deal. Occasionally buyers ask for unnecessary repairs. They want a sewer line replaced because it has collapsed except it hasn’t collapsed.
Sellers should ask some questions and do some research before signing any kind of an agreement to make repairs. Find out how much the repair will cost and who can make the repair. Also, find out if permits are needed and if getting the city to sign off on the repairs will lead to more expensive work.
I have had sellers say yes to repairs and then let me know days before the closing that they could not get the work done. Sometimes it is something as simple as getting a window to work properly or removing a large freezer chest from a small basement.
If the buyer is asking for repairs you don’t want to make try reducing the sale price or paying for some of their closing costs so that they have the funds to make the repairs.
It is possible to sell a house without making any changes or repairs. Sellers can always say no but there is a tradeoff. Buyers tend to want thousands of dollars off the asking price in exchange for making hundreds of dollars worth of repairs. I encourage buyers to do some research before asking for repairs or discounts.
When I need to do a little research I often start by searching youtube.