Purchased property listed and sold as a triplex just found out from city it is a SFH

[Karin Recalde]

Purchased a property that was listed by sellers agent on Zillow realtor.com etc as triplex with rents listed etc. my realtor verified the rents, as it has been rented as a triplex for 25+ years, worked with both my realtor and listing agent through the sale. Spent a few months and about 40k rehab and was just told by the city it's not a triplex, or even a duplex but a SFH. Located in Kansas.
anyone been through this and/or suggestions on what to do? 

[Jared W Smith]

ALWAYS verify the unit count and Certificate of Occupancy with the AHJ (Authority having Jurisdiction) BEFORE purchase. No offense to realtors but how a property is set up or length of time it has been rented for has no bearing on the legality of the property records on file if they differ. CO will always trump that. @Karin Recalde

I've had to legalize circumstances you and @Gino Barbaro have stated. It gets messy since the property value is greatly diminished based on the actual unit count. It's usually a tall order to legalize it up to the unit count you want. As Gino said, find a local Architect to take this on. All the best.