2 ideas

1 .  Take out a re-finance loan.  leave only a small amount of equity in the house. Gift the cash to your kid tax free (need to move the cash overseas first and then wire in, subject to 100k a year reporting requirement. ). Gift the equity portion of the house to your kid ( 14000 usd a year tax free). Depending on the equity of the house, it might take a few years. Your kid can then pay off the loan on the house using the cash you gifted him. 

2  Form a foreign corporation such as a HK corporation. Sell your house to the corporation, and then gift the shares of the corporation to your kid.

disclaimer: above are just some wild ideas I had in a dream. They are not tax advices. Never did them myself, and not sure if they will work. Always talk to a CPA to verify any tax related issues.