Naturalization

1. How much and for how long do we have to work on an endeavor for which NIW I-140 was approved to avoid any issues in adjustment of status, naturalization, etc.?

2. Is there a way to get any status in the US to work on the approved NIW endeavor until I-485 is filed?

My father is a green card holder (five years, three months now). He has spent 33 months in the US in the last five years and for 6 months every calendar year. The issue is that on two of his most recent trips, he was out of the US for nine months, six weeks, and 11 days.

He has always been retired and has not held a job in the US or abroad. His daughter and family continued to stay in the US during these trips. He does not own a house in the US but stays with his daughter and her family and continues to have access to that residence during these trips. He does own property in India and has continued to hold that same property over the last five years. His trips abroad were to visit his other children.

What are the rough chances of "rebutting the presumption of break of continuous presence", if he applies for naturalization, despite these two trips of 9 months and 6 months two weeks ? Would you recommend going through a lawyer ?

Regarding the 9-month absence that is being questioned, if he doesn't own a house but still has access to the residence, it should be acceptable as long as there's a valid explanation for his absence of more than six months. This situation has occurred before. For example, if he couldn't return due to reasons like COVID-19, health issues, or similar circumstances, as long as these reasons are clearly explained, it should be acceptable.