Lease renewal signed - Should I print another lease?

[Lynel Johnson]

60 Days before a lease is to end my tenants have a lease renewal option form. They choose the option they'd like - 1 Year, 6 Months or Month to Month, Sign and date it and get it back to me.   At this point, do I need to reprint their lease and have them and myself sign and date it. OR can their signing the renewal form serve to continue the lease terms from before?

Thanks for any input.

~Lynel