Different Lease Terms based on Credit

[Brian Chu]

I have a 2/2 where I rent each room individually to different people. One tenant is a model tenant (keeps things neat and clean, always pays on time). The other tenant always pays rent late, calls to complain about every little thing, has a lower credit score, and is generally a bit more work to deal with. 

Both of their leases are up for renewal at the same time. I was wondering if I could write up different leases for the two different tenants. For the good tenant, I'd like to do a year long lease. For the problem tenant, I'd like to do a 3 month to 6 month lease to give me flexibility to not renew if they continue to create problems or go delinquent on rent. 

Any thoughts on this?