Estimating Rehab from auction without seeing inside of property

[Johnna Stark]

Hey everyone! I recently listened to a podcast where the wholesaler found all his properties on auction websites and had trained his VA to estimate rehab costs to get to the maximum allowable offer.

Without going inside of these homes to see the extent of repairs needed - how would you be able to estimate the repair costs in order to come up with MAO? Any input would be greatly appreciated.