California treats holdover as a presumed renewal under Civil Code §1945, capped at the rent interval and never beyond a year, so an unsigned continuation becomes month-to-month at the old rent by default. Any automatic-renewal clause must satisfy the eight-point-boldface requirements of §1945.5 or the tenant can void it. Statewide, the Tenant Protection Act of 2019 layers rent-cap and just-cause rules onto many renewals after twelve months of occupancy, which can limit how far a landlord may raise rent even in a properly signed renewal. A renewal here should state the new rent and confirm it sits within the applicable cap.
Texas gives the parties broad freedom of contract, and Texas Property Code §91.001 sets the default notice framework for terminating month-to-month tenancies that arise when a fixed term lapses without renewal. There is no statewide rent cap, so a Texas renewal can reset rent to any negotiated figure, but the document should still specify the new term precisely because a held-over Texas tenant otherwise defaults to a monthly tenancy terminable on one rental period's notice.
Florida converts a held-over fixed term into a month-to-month tenancy under Fla. Stat. §83.46(2), which then requires the strict notice of §83.57(3) to end. A signed Florida renewal is what prevents that automatic conversion and keeps the landlord's control over duration intact. Florida imposes no general rent cap, so the renewal's value is term certainty rather than rate limitation.
New York is the strictest of the four on automatic renewals. Under General Obligations Law §5-905, an auto-renewal clause is inoperative against the tenant unless the landlord serves written reminder notice fifteen to thirty days before the deadline. New York City and several other localities add rent-stabilization renewal rights that dictate permissible increases and mandatory renewal offers, so a renewal for a stabilized unit must track the local rent-guidelines figure rather than a freely negotiated number.