50-year-old male family immigrant

1, you can do this, but it would definitely be better if you could stay a little longer. The requirement for a green card is that one-time exit should not exceed 183 days. If you meet this requirement, the visa officer has no right to make things difficult for you, but if you don't, you may be pulled aside for questioning, which is very troublesome.

Father doesn't have to stay in America. The nature of your green card is the same, there is no difference.

I don't know what specific project you are talking about. The most popular investment immigrant now is EB-5 project. The so-called temporary green card depends on whether the project you invest can create 10 jobs within two years. What you can do is to pay more attention to the development of this project, let the intermediary send you project operation information regularly, and change the project in time or urge you to solve and make up for it once you find any problems in the project. But to be honest, these are actually beyond your control, so this EB-5 is more risky. Good luck.

In addition, my previous friend said that none of I-829 was cancelled, which is completely wrong. Many I-829 applications from Immigration Bureau in official website have been approved (that is, the conditions for cancellation of temporary green cards), but now the waiting time is getting longer and longer. It seems that it takes 8- 12 months, and the refusal rate is within 10%. So don't worry too much.