Urgent Help Needed On I-140

[compudada]

Gurus,

A company in New York is willing to file my I-140 using an approved LC substitution. The company is also willing to file my I485 after getting I-140 receipt from INS. I had following questions

1. When is the earliest I can apply for EAD and get it? Do I have to wait for I-140 approval before I can apply for EAD?

2. I-140 approval in Vermont is taking more than a year. Do I have to stay with that company until my I-140 is approved or can I change companies 6 months after my I-140 and I-485 has been applied?

3. Does INS reject I-140 or I-485 applications for any reason?

4. How soon can my stay begin legal in this country i.e. I can stay on EAD and not need a visa?

Imagine the following
I-140 applied in Dec 2003
I-485 applied in Mar 2004

Thank you.

 

[I140helppls]

re:

1. When is the earliest I can apply for EAD and get it? Do I have to wait for I-140 approval before I can apply for EAD?
You can apply for the EAD/485 while applying for I140 .

2. I-140 approval in Vermont is taking more than a year. Do I have to stay with that company until my I-140 is approved or can I change companies 6 months after my I-140 and I-485 has been applied?
NO IDEA

3. Does INS reject I-140 or I-485 applications for any reason?
NOT REALLY. IF THE SUB. IS A PERFECT MATCH YOU SHOULD BE OK.

4. How soon can my stay begin legal in this country i.e. I can stay on EAD and not need a visa?
NO IDEA