Buying Duplex.. both tenants don't have leases

[Johnathan Norman]

i have a duplex under contract that has 2 tenants in place currently. Both tenants don't have a lease in place so i'm unsure how to handle the situation.   I could ask the existing owner to get them to sign month to month leases or I could take ownership of the property and ask the tenants to sign leases with me. Which is the best way to handle this? According to the seller both tenants expressed they want to remain