The notarized kinship certificate and notarized certificates of applicant having no lineal relatives in the native country;

经公证的亲属关系证明以及投靠人境外无直系亲属关系证明；

youdao

The direct lineal descendants of relative by blood and order, it refers to and his with indirect blood relationship, namely except lineal relatives by blood, and their outside of the same origin kin.

旁系血亲相对直系血亲而订，它指与自己具有间接血缘关系的亲属，即除直系血亲以外的、与自己同出一源的血亲。

youdao

In the blood which is not direct lineal descendants in blood and his and the relatives of the same origin.

旁系血亲是指非直系血亲而在血缘上和自己同出一源的亲属。

youdao

The new law, applying to purchases made after Nov. 6, also says a person may not take a credit if the home is purchased from a spouse or the spouse's lineal relatives.

WSJ: Home Buyer's Tax Credits -- What You Need to Know