以”有限公司”名義簽租約, 另加簽一份個人擔保

法例無要求。只係業主要保障自己權益，萬一間有限公司吾交租，又係空殼公司，告到佢清盤都無錢收。所以要有董事擔保，追租時有人可追。
一般小型有限公司向銀行借錢、做按揭都係要董事擔保架。

No such requirement in law. It is a matter of prudence of the landlord to safeguard the due payment of the rent by a limited company. All terms of the tenancy have to be agreed by all parties.

2009-07-13 10:27:34 補充：
Repeating the first correct answer given.