Please check for any errors. If there are some errors please correct them for me.

When you were in my office last Tuesday, you stated that you wanted to alter your will to include two additional heirs. I have now prepared a will in compliance with your instructions.
Please come to my office Monday at 10 a.m. to execute your will. If this time is not convenient for you call my assistant to arrange a more convenient time.

The text appears to be error-free. The message communicates the intended information clearly and concisely. It includes the necessary details, such as the reference to the previous meeting regarding the alteration of the will, the preparation of the will as per the instructions, and the request for the recipient to come to the office to execute the will on Monday at 10 a.m. The option to reschedule if necessary is also provided. Overall, the content seems accurate and error-free.