Help had investor completely lie to us when we bought property

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So we bought a property in Cahokia, IL. It was our first deal and we were so excited. The investor said it was completely remodeled and had a tenant in there under property management. The place turns out is not up to code, the tenant was never screened, and there's no occupancy permit. What legal actions can we pursue? He blatantly lied in all communications about the place.