Hello

I have a Masters degree in CIS and I have been working in an IT Firm since last 2.5 years. My company wants to sponsor my Green Card through EB2 and they are willing to do whatever it takes. I am currently in H1B Visa status through the same company. They have never sponsored any one for Green Card before so they were asking me what the company needs to do to sponsor me. I googled and found lot of information but it is confusing me. I would like to hear from someone who has gone through the process. I would really appreciate if someone could tell me the steps and the process.

Few specific questions I have is:

The company I work for is a small company so does the company need to meet any requirements?
What job specification does the company need to put in the ad they will publish?
How long does it take for the whole process? (from day one to green card)
Any tips to make the case stronger or expedite the process?

I would really appreciate any inputs from the experienced individuals.

Thank you and Happy Dashain to you all!