H Visa

My situation. I work for company A
1. My 6th yr H1-B ends in Dec 2011
2. Labor approved (PD May 2010) and I-140 (applied Sep 2010) pending - EB3
3. Once my I-140 gets approved (hopefully) my lawyer's plan to apply for a 3 yrs extension some time next year (Till Dec 2014).
After/If I do get my extension for 3yrs with my company A, then Can I change my job to company B in 2012(who is willing to do my labor and I-140 again).

I am currently on H-1 and interviewing with another company. The interview involved air travel within the US and staying at a hotel. Is anything wrong with my prospective employer reimbursing the air travel and hotel costs and also providing reasonable allowance (for covering food) for the days of my stay? Would receiving a cost reimbursement check from the prospective employer invalidate and/or interfere with my current H1 visa status?

Right now my wife and I am on advance parole, In 2005 what happened was, when my H-1 and my wife’s H-4 came to renew ,the attorney forgot to renew my wife’s H-4 so she was out of status for about two months later he filed it everything was alright.So my question is can she go to India with advance parole and come back, will there be any problem?

I am currently in US on H1-B and wanting to switch to F-1? How long does this process usually take? Is there an option for adjustment of status or do I have to leave the country to get the F-1 stamp?

My H1 visa and I94 expired on 30th sept’10; we filed for a renewal but got an RFE in about 10 days for client letter. Replied to the RFE with client letter on October 29th, got visa denial on November 10th as client letter had project end date of 11/5. Current lawyer says I am ok to stay here 180 days from visa expiry, currently looking for new project with client letter to file for new H1 B visa and then go to India to get stamping and reenter. Am I ok to be here in the country or should I leave immediately? Will stamping and reentry be a problem? Is filing with the same company a good idea?

My company has agreed to bring me and my wife to USA on L2 visa and then later get a H1 B visa. I want to make sure my parents have a B2 visa before I leave India. I have thought of two possible approaches:
a) Get a B2 visa for my parents but telling US consulate that I am traveling on business to USA and want my parent to visit the country. I used the same method for my wife 2 years back with no problems.
b) Get a L2/H1B visa for my self and then submit a request saying my parents want to visit the country for some time.

I am currently working for company A as a contractor via a preferred vendor Company B, and my employer is Company C. Now my client company (Company A)has offered me a permanent position with them, thus would there be any hassles while doing an H1B transfer to my client company(Company A) from my employer(Company C) due to the employer/employee relationship memo?

My spouse and me are currently working on H1 and we do have our EAD and AP even though we are not using it.
We are planning on a trip to India in the month of December. Both of our H1 visa's on passport have expired. We plan on using AP when coming back to US to avoid the hassle of getting our passports stamped.

We plan on remaining on H1 even though we use AP to get back. We do plan on renewing our AP and EAD when they expire. What I want to know is... is there any advantage of having visa stamped in your passport as to using AP if you plan on remaining on H1? One that I know is cities like London require you to get a transit visa if your visa has expired when traveling to India.

Can I apply for Social Security Number on basis of I -797. My license to work as a vet in State A in depended upon SSN. How long does it take to get a SSN. On what status will I stay until I get a SSN & a license & subsequently start my job.