Bad Start Letter?

[Kristin Boekhoff]

I put a tenant in my first rental property two months ago. Last month she paid the rent seven days late and this month she is ten days late and counting. (In Baltimore City there is a mandatory 10-day grace period and in Maryland the max late fee you can charge is 5%.) I happened to speak with the leasing agent who found her and she suggested that I send her a "bad start" letter. Has anyone else done this? If so, any suggestions of what to put in the letter?