The monthly rent shall be enhanced up to 10% every year
The monthly rent shall be enhanced by 10% every year
Note : used 'up to' instead of 'by' in above sentence.
grammaticality
The monthly rent shall be enhanced up to 10% every year
The monthly rent shall be enhanced by 10% every year
Note : used 'up to' instead of 'by' in above sentence.
Best Answer
I agree with Bill Franke. Your use of enhance is not appropriate. You have several options:
I assume you are talking about the lease of a property? If so, the use of shall is preferable to will, as in options C and D.