Need info on H1b to H1 dependant visa conversion

[gandhi8389]

Both I and my spouse are in H1B visa with valid stamped petition till 2019.  

I am currently in India offshore location .  My wife is working in onsite location and we are getting a baby soon.

Since i dont have an requirement to work in my wife's current work location.  I would like to go on H4 Visa and take care of her.  Can someone clarify few things 

Can she process H4 dependant visa for me ?

Can i travel in H4 Visa , will that impact my current H1B validatiy ?

Can i swap company after coming to U.S because i have H1B valid petition ?

Thanks You !!! Grateful to the people who responded.

[abctx007]

Can she process H4 dependant visa for me ? yes your wife can.

Can i travel in H4 Visa , will that impact my current H1B validatiy ? no H1B visa is automatically revoked. you can only maintain 1 status at a time.

Can i swap company after coming to U.S because i have H1B valid petition ? yes you can with old H1B petetion and do not come under cap. you should file COS from H4 to H1B