(Please note: this is a question for a US attorney, even though I am currently residing in China. I asked this question previously, and received an ungrammatical response from a Chinese lawyer who was CLEARLY unfamiliar with US family law.)
I am a US citizen who has lived and worked abroad for the past 15 years. My wife, who is Vietnamese, and I have been married for the last six of those years. She has two children from a previous marriage (the father died, leaving her a widow with the two children). How can I adopt the two children? We live in Beijing and have no intention of returning to the US anytime soon.