I got to know Jack through word of mouth. I am grateful for his help. Even though I have not paid Jack any retainer fee or any money, he has answered my questions regarding H-1B work visa and employment green card -- within a few hours -- when I sent him my questions on Facebook Messenger. I have had... experience dealing with different immigration lawyers in a few countries. Most of them made it difficult for me to contact them directly, even when I have paid them a handsome fee. (For example, most of those lawyers hire other people to answer their phones for them, and it took days, if not weeks, to set up a phone/in-person appointment with them. Many of those lawyers took a long time to reply to my emails, if they even replied at all. At least one immigration lawyer even refused to give me his email address!) Compared to those lawyers, Jack has been refreshingly pleasant to interact with. In addition to being helpful and responsive, Jack is knowledgeable and seems competent. He is active on social media and frequently hosts live Q&A sessions on his Facebook in English and/or Mandarin. Moreover, Jack offers a 10-minute free initial phone consultation, directly with him. I have no family and few friends in the United States, so I am thankful to have received quick, helpful answers to immigration questions from a credible source, such as Jack, a licensed, practicing lawyer in California. Long story short: if I have a complex immigration case, I will hire Jack to represent me and solve the problems. I highly recommend Jack C Sung!