Visitor Visa - B2

I am currently in India.. I went to USA on H1B (along with wife - H4) last year in Aug 2013 and I have appliled H1B extension as it got expired on Dec 2013. I returned back to India on emergency before approval of my H1B extension petition in April 2014 as my mother was sick and she passed away 2 months later.

Now I got my H1B extension petition approved and I have to get my VISA stamped again for the extended petition (for my wife as well on H4. My kid was born in US. He has US passport and he came to India on emergency VISA which is completely different story).

Now I desperately want to take my father along with me when I am travelling to USA as it will be soothe him a little after parting my mother. But being in India, i thought i cannot put myself as sponsor for his Tourist (B2) VISA. So he filled in DS160 as self sponsoring for his trip and he has 3 Lakhs in his account (5000 USD) and he has property under his name in India. VISA Appointment already has been booked for my father. Will it cause any denial either to his Visitor VISA or my H1B extension stamping?? What kind of questions he can anticipate??

I will be going for VISA stamping 2 or 3 days later after his visitor VISA Interview. What he should be telling in case if they ask whether your son will be accompanying you during the travel or in USA during your stay (In DS160 it is not mentioned that I am in US)?? Will it be causing any issue to my VISA Stamping process??

Please answer these questions. I am getting too many questions for myself :(