唔該翻譯一段英文

呢封信係律師樓寄黎叫我朋友簽
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We are the Mortgagor under a Mortgage in your favour in respect of the above property.
We shall be grateful if you will kindly instruct Messrs. A,B,C , Solicitors(Attn.:Mr XXX, Kowloon Banch) to prepare the necessay Discharge/elease for the esiting Mortgage and also let them have the amount of principal and interest payable upon reassignment of the said Mortgage.

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