This extensive form contains alternative clauses for virtually every approach to adjusting or increasing rent during option periods.

• Fixed rental.

• Formula CPI adjustment.

• Formula CPI adjustment with a floor and a "cap" for first year of second option period. Each subsequent year of the second option period is subject to a full annual CPI increase.

• Fair market appraisal.

• Landlord's then-prevailing lease rate for comparable space.

• Optional clause: Option to extend exercisable solely by original tenant.