Help editing this letter pls?

Question

(oky here the deal...we are the property owner for businesses. one of the tenant was complaining about his nxt door neighbor. complaining about the new tenant that they put a sign nxt to their store (on the top of their roof i think) they mention its kinda dangerous if ever that sign fell off...so now i need to request for them to remove it.)

help...

Dear Sir/Madam:

As we know that there’s a signage located at the corner entrance of the alley. For safety reason we are requesting to please remove it immediately. Please refer on your lease agreement Paragraph 7.1 and Paragraph 7.2

If you have question regarding this matter, please feel free to contact us. Thank you

for your anticipated cooperation.

Sincerely yours,

Answer 1

there are just a few changes that need to be made, and some grammatical errors that should be fixed.  Here is my revised version.

Dear Sir/Madam:

It has come to our attention that there is a sign at the corner entrance of the alley. For safety reasons, we are requesting that you please remove it immediately. Please refer to Paragraph 7.1 and Paragraph 7.2 on your lease agreement.

If you have any questions regarding this matter, please feel free to contact us. Thank you for your anticipated cooperation.

Sincerely yours,

Answer 2

As we know, there's a sign located at the corner entrance of the alley. (is that what you're trying to say?) For safety reasons, we request that you remove it immediately. Please refer to your lease agreement Paragraph 7.1 and Paragraph 7.2.

If you have questions regarding this matter, please feel free to contact us.