Estimating fire damage rehab.

[Chris Allen]

Been wanting to get into fix and flip/ BRRRR investing and just saw a property that I think has some great potential for a BRRRR, but since I have no experience doing a rehab, I would like some input.

just found a 4plex that had a fire in one of the units which that unit is destroyed, while the other units just have smoke and water damage. They are asking $90k for the property. Older 4plex's have been going for around $180k while units built in 90's early 2000's have been in the $200-250k range. 

anyone have any experience in rehabbing fire damage structures? What might I expect in rehab cost? Other than a basic remodel, what would I be replacing? Roof, electrical, drywall, plumbing, etc...?