Offer Contingent on Eviction of Tenants? Anyone Experienced This

[Dave Homyak]

Client saw a property he likes. Duplex. Both tenants have leases lasting at least a year. Tenant in bottom unit has abandoned cars in driveway, trash outside and trash inside, based on looking through windows.  My client would like to purchase the property, but wanted to make the offer contingent on the bottom tenants having vacated the property.  Talked to the management company/ listing agent and they indicated that the trash was a violation of the lease, and they would entertain an offer with such a contingency.  The owner had actually considered doing this before listing, but current tenants pay on time and he wasn't sure he could find a replacement tenant that did the same.  Just wondered if there is anything my client and I should also include to protect his interests in the purchase agreement. Damage to plumbing and cabinets comes to mind.