收养16 years old boy，just 失去亲父, how to申请?

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收养16 years old boy，just 失去亲父, how to申请?收养16 years old boy，just 失去亲父, how to申请到加拿大? 母亲失去监护权，以后不可能申请到加拿大探亲的机会。

1 L% a* t0 w+ h7 y" w. ]I have one girl and one boy myself.

Any one might know how to do this or help? How to do the paper work in China?
2 c" }3 J0 b# Z: X
, c) E  K! i0 c6 RThanks first.