Podskazhite pozhalyista,Mi s docher'u zhivem v USA 4 goda, imeem postoyannie GC. dolzhen li moi bivshii syprug, prozhivaushii v Ykraine ,vpisivat nashy doch' pri oformlenii dokymentov na GC ?( Y nego tam drygaya semya - est rebenok)

Однозначно да.

On your entry, you must list your spouse (husband or wife), and all living unmarried children under 21 years of age, regardless of whether or not they are living with you or intend to accompany or follow to join you should you immigrate to the United States, with the exception of children who are already U.S. citizens or Lawful Permanent Residents. A spouse or child who is already a U.S. citizen or a Lawful Permanent Resident will not require or be issued a DV visa. Failure to comply with this instruction can result in the disqualification of your entry.