Need advice-closing on new duplex with tenant w/verbal lease!?

[Stephanie M.]

Hi All, I am in need of some guidance. I will be closing on a new duplex on July 13 ( contingent on inspection ). There is one current tenant, who the listing agent said his lease is up in July. Listing agent just informed me that it was verbal lease. There isn't a lease. What is the best way to handle this situation? Any advice is really appreciated, thank you.