How does lack of Advance Parole affect Canadian applicant during AOS (I-485)?

Travel as you described returning as a visitor for pleasure without advance likely results in the application for adjustment being denied as...

My name on the green card was corrected (slightly different spelling) i believe it shld also be corrected on social security?

From the SSA: “If you legally change your name because of marriage, divorce, court order or any other reason, you must tell Social Security so...

Is it okay to travel as soon as I get my green card?

You need a valid passport along with the green card. If you have both there is no need to wait to travel.

Since the record remains available for review it is possible that it will be cross referenced and you may be questioned about the discrepancy.

Green card renewal 10 year?

Yes these processes are taking exceptionally long at this time. You may check processing times on the USCIS.gov website. When your processing time...

Your immigration record is examined in it’s totality and may include the resident (green card) process.

You do not require a visa to remain in the United States. A visa is required only for travel back to the United States. You must obtain a visa...

In any immigration matter If asked you must disclose. If you are proceeding through a change of status in United States it is likely not to affect...

As a lawful permanent resident of United States we must demonstrate that you are maintaining your residence in the United States. CBP and USCIS...

My form i-765 was denied because i forget to put my picture ID, when i am fulling the i-920b form, what can i do exactly?

If you remain eligible refile. If you do not remain eligible contact an Immigration attorney.