Hi Peter! Heard your name from a couple of friends who have gotten their visas from you! Nice to see you here. What kind of travel restrictions apply for someo

Hi Peter! Heard your name from a couple of friends who have gotten their visas from you! Nice to see you here. What kind of travel restrictions apply for someone on an O-1 visa (potentially looking to file for EB-1A)? Is there a recommended minimum period of stay in the US?