Can I renew passport after I sent my current passport for H1B filling and before stamping.?

Today date : 21-03-2016. I need to send all scanned copies of Passport for H1B processing. I do not have time for renew of passport. Passport expires in June 2017.

Can I renew my passport before stamping and after I sent scanned passport for processing. I this case I would be going for stamping with a new passport. Let me know what all I need to do if I renew before stamping.

Yes, this can be done. Send current passport now and take the new one for stamping.

My Petition has old Passport Number which is due to expire in few months and I have got New passport number, Will there be issues when I book appointment for Visa Stamping?