Thank you everyone who responded. Here is my current plan of action
1. Today morning, I sat and prepared a document which basically states all the ties I have to my residence namely (along with scanned copies of the relevant documents)
The title deed when we got the house (showing when we got it and length of duration)
the mortgage being paid ( I am showing 4 months of it to cover the time I was out - might be overkill but I wanted to show continuity)
Home insurance for the last 6 years
utilities and bills I paid while out of the country (Internet/electricity)
My and my wife's state driver licenses which have our house address showing both have it as our place of residence
2. In this document, I also tried to establish how I kept my job in the United states (Hence showing I was maintaining ties) while out of the country by showing payslips for the last 3months (during and preceding the trip) along with a letter from the company which states I have been working with them for the last 7.5 years
3. As part of the document, I also included a discharge summary from the hospital where my dad was diagnosed along with the summaries written by doctors during home visits and a copy of his death and burial certificate to establish the need for my travel (and not sure if there are humanitarian grounds, but i wanted to ensure if documentation was needed, I dont miss it)
All said and done, while I might never need this document, I am just trying to be proactive. I read a number of cases and it seems like at the end of the day it depends on the IO to interpret how living/residing is actually construed (whether its physically living/or just maintaining a residence) and I have read both scenarios happening (acceptance/denial)
If the worse comes to the worse and I am denied, considering the fact that I can apply again is a deep source of relief to me. Having to shell out another $710 dollars for it will be annoying but thankfully I have the financial ability to pay for it and I am grateful. That said, I am not travelling anywhere for a year, so in a couple of months , if the worse comes to it, I can still reapply once I meet the three month mark.
This is me just ranting but I am usually extraordinarily careful in things like this and not taking the time to read upon what the interpretations of the three month rule might mean is annoying. I also feel now when I think about it is that my application was a knee jerk reaction to my dad's passing since my dad was working in the US in the early 90's and he decided to move back when my mom was pregnant with me and he used to often tell me that he wished he had stayed 6 more months so that I was born there and I now dont have to go through all this now, so maybe I am just trying to fulfil his desire for him.
Anyway will keep you posted and thank you for your advice and input. If you have any other feedback or anecdotal information which might help, please feel to send them my way.