我朋友来了me,,香港的,vo是row,2005、7月29号fn的,5月2号签发,要求补充最新无犯罪证明、资金证明,还有一个没看懂,我朋友有个小孩归前妻抚养,他委托我向大家求教:notarized non-accompanying family members declaration & separation statement for non-accompanying spouse or common-law or dependent child(please note that you will not sponsor your non-accompanying family menbers in the future if they do not comply with the immigration requirements with you at the time,请问什么意思?是什么声明?应该由谁来写这个声明,谁签字?