No Contract for Renewal, Tenants Silent (60 days out)

[Pawel N.]

I have a family living in a single family residence and they've been there for three years. They mentioned they want to stay one more year but I've been trying to get in touch with them regarding a contract and haven't heard back (text or e-mail) over the last five weeks or so. I was planning to raise the rent by about 5% to account for the rental changes in the area.

We are approaching 60 days out from their current lease expiration. What's the best way to proceed? Send them an official letter, and if I still haven't heard from them a month out then ... ?