求幫忙修改租賃延長合約之內容 (中+英)?

求幫忙檢查，包括英文文法。
也歡迎給予意見。

Landlord: XXXX
Tenant: YYYY

The property: property address

Both parties (Landlord and Tenant) hereby agree to extend the period of Tenancy Agreement (attached) for one year, to DD MMM 201X.
經業主及承租人雙方同意，原租賃協議之租賃期延長一年，至201X年MM月DD日。

All the term and clause are same except the expiry date of the agreement.
除租賃期之更改外，所有租賃條款維持不變。

This is not a new leasing agreement. Therefore, the landlord has the right to repossess the said Unit after the new expiry date (say, DD MMM 201X).
由於這並不是新的租賃合約，故業主有權於201X年MM月DD日之後收回該單位。

This agreement is prepared in Chinese and English, the Chinese version shall be followed.
本合約中英對照，將以中文文本為準。

The copies of the original Tenancy Agreement, as well as the Change of Landlord Declaration are also enclosed for reference.
隨函附上原樓宇租賃合約及轉租聲明之影印本作為參考依據。

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還有我有些分不清究竟何時用agreement/contract，何時用termination/expiry...