Can someone with H1B visa be petitioned by their US citzen husband?

Yes, marriage based immigration will likely be the easiest way for her to transition from H1B to US Lawful Permanent Resident.

As a recently promoted Engineering manager who is being transferred to a foreign country, how plausible is EB1C in 1/1.5 years?

Its doable, just make sure you are supervising other professionals during the year you are away and once you come back.

Is it legal in Washington state for an employer to inquire about marital status or if i have kids during an interview?

Changing this to employment law practice area, instead of immigration.

What are the chances that my visa application will be granted?

You will have to present evidence that you will return home after the visit and that you don't need to work in the US, e.g. that you have...

Can I apply for 7th year H1 Extension..?

Your employer can file the I-140 but they will issue an RFE asking for the original labor certification. They will not communicate with DOL for...

What do you mean? your employer needs to file a new I-140 and you could file the I-485 with Nepal as your birth place and of course, explain the...

Can a green card holder file for citizenship earlier than 5 years time?

No you cannot obtain the greencard faster. You can sponsor your spouse but your spouse will have to wait to get the visa according to the visa...

Can I transfer my H1B to my new employer and change it to L1A?

Did you ask your lawyer this question? both take about the same time to process - can be filed through premium processing.

She can try to apply for a visitor visa, completing online DS-160. She will need to evidence that she intends to return to Nepal at the end of her...

Worksite location change?

Well, typically we send information about the process ahead of time so you know if you move the process starts again. But since it is an employer...