Adding a Roommate

[Nikoma Thompson]

I have a tenant who is currently the only one on the lease. I knew he would be looking for a roommate and now he has found one. He wants to add the roommate to the lease for the remainder of the the lease. What is the best way to go about this? Do I just write it in on the leasee line next to the first tenant with a date and initial from everyone? Do I write up an addendum to add to the lease?

Thanks!

Nikoma