Enquire within upon everything

To Mr. R. A.--Sir,--I hereby give you notice to deliver up possession, and quit on or before------, the [here state the house or apartment] and appurtenances which you now hold of me in [insert the name of street, &c.], and in default of your compliance therewith, I do and will insist on your paying me for the same, the [annual or monthly] rent of----, being an additional rental of----pounds per annum [over and above the present annual rental] rent, for such time as you shall detain the key and keep possession over the said notice. Witness my hand, this----day of----, 18. Witness, G.C. L.O.