Sellers generously accepted because they know some things need repair.

Most of the Flippers want to be around 75% of ARV minus repair cost or lower.

Do they have a lot of repairs called in?

I would keep and organize all of your communication around this issue, including gathering pictures of the unit and the area in question that was repaired.

These can be used for things like payroll but will get trickier when talking utilities or repairs & maintenance as a lot of those have to do with how old the building is or what condition it's already in

Auctions are quite possibly the worst place to buy if you want to avoid repairs.

Run a good business, keep you properties in good repair, have good paperwork.

Also, they will NOT stop paying UNLESS you do not do the repairs in the time allotted.

Keep it straightforward at first, but know that experience is the best teacher—mistakes are part of the process and will help you learn.For ARV (After Repair Value), start by running comps (comparable sales) on recently sold properties in the area that are similar in size, style, and condition to your planned rehab.

Also, looking at the bigger picture, if this remains contentious, good luck getting him to come back to address any warrantable repairs etc.