Charging different rent for month to month

[Tamara R.]

My standard lease goes for 1 year, then converts to month to month. I am thinking about adding something in my lease that if another 12 month lease is not signed after the expiration of the first 12 month period, the month to month rate will be higher. Does anyone else do this and include the amount in the first lease the tenant signs? Any suggested wording? Also, how much more should the monthly rate be? All of my rents range from $1500-$1800 a month. I know some people think a month-to month lease is preferable, but I have a pretty good quality tenant pool and screen pretty well so have never had any issues. Any input would be appreciated.