1. Get a lawyer to draft up and to execute.
2. Either is fine. Better to go through lawyer.
3. If they are in China, need to be executed before notary public.
4. Lawyer
.
欢迎来到华新中文网,踊跃发帖是支持我们的最好方法!
Circumnavigator, lawyer and columnist and the man who divides his time between Singapore, Hong Kong and China. I believes that etiquette transcends nationality and race. 
In this column I will offer stylish advice to everyday questions on etiquette at work and at home and anything else that may be bothering you.