请教各位高人，我第一个H1B在5/21就要到期，现在打算申请H1B的延期(三年)，因为
我的第一个H1B是请律师办的，所以我就请律师提供H1B延期的材料清单，律师开出
的清单如下：
About the company
Signing person’s name, job title and email address
Number of employees
Gross income and Net income
If company’s address, name, , phone number, FEIN have changed since last
time we filed H-1, please must provide updates
About your job
Job title and Job deion (if they changes since last time we submitted
the H-1 Petition)
Job location
Current salary
About yourself
Current residential address
All contact phone numbers
Social Security Number
Email address
Country of birth and Province of birth
Citizenship (especially when it’s different than the country of birth)
If you earned a U.S. Master degree, please provide the following:
Name of U.S. institution
Date degree awarded
Address of the U.S. institution (please must include the street name)
Please tell us where do you want this extension package to be mailed? (the
package needs to be signed by the employer)
Please submit copies of the following:
Current resume
Most recent I-94, both sides (please make sure the current entry date stamp
is showing clearly)
Recent two-month paycheck stubs
Passport ID page showing the expiration date
可是不幸的是我老板不愿意出H1B延期的费用，我打算DIY，这样可以省下近$1000的
律师费，请问除以上材料外，我还应该提供什么材料给USCIS？另外还有什么要注意
的事项？
谢谢！