I will like to begin the process of filing for my two kids who live in Trinidad and Tobago. I am a US Citizen and lives in the USA. I have 3 questions: How long will the process take for them both, It is my wish they arrive together if possible? Do I file separate I-130 applications and pay separately? How much is the total cost for this process from beginning to end? I am hoping someone out there can assist with my questions. I have been seeing most people filing for parents and kids under the age of 21. Thank you.