I am an IT professional who is traveling in business visa to Chicago for 5 weeks.My husband is also an IT professional who is working in a reputed US based mnc with a good salary.
He is holding an US visa that was filed by his company in 2010 which is valid till 2020.He has never traveled anywhere out side India till date.This is going to be his 1st trip outside india.

The type of the visa is B1/B2 and no where in visa his company name is mentioned.

Questions:

1. Can he come an join me as a visitor to US during my last 2 weeks of stay using the same visa.Eg I am traveling on 23 rd and coming back 27th dec.He will come there on 12 th dec and will return on 27th dec with me.

2.What all documents he needs to carry with him that will be required to clear the immigration in US airport.

3. We are planning to visit NY during his stay where our friends are staying.Is it possible he will land into NY instead of chicago.The same day I will fly to NY and join him.After visit ,we will come back to chicago and there he will stay till 27th dec and we both will fly back to india from chicago only on 27th.
Or he has to land in chicago only since I am staying there.

thanks,
Sanjana