1. Job Offer Letter from Dr. Petitioner’s Employer
2. Employment Verification Letter from Dr. Petitioner’s Employer
3. Documented research achievements and more than three full-time
researchers letter from Dr. Petitioner’s employer
4. Financial capability statement from Dr. Petitioner’s employer
以上4项都必须的吗？eb1a，哪里有模版？
还有除了填140 form，还要做哪些事情，DIY指南有吗？谢谢
