If you have an October 1 start date for the first employer, you can also request that for the second.

No, it does not mean that it is being processed any differently than any other i-130.

Bring your receipt for the application for extension of status.

No, there is no visa category for parents of permanent residents.

If you are not authorized to work your income cannot be included.

You must file an immigrant visa petition, or Fiance petition, to bring your spouse or fiance to the U.S.

If you have not moved, perhaps you want to keep the form to use it if and when you do move.

Were you admitted? Are you in legal status now? Adjustment based on what? It's hard to answer this question in the abstract.

This site is for U.S. immigration. Contact a Canadian immigration lawyer for information how to immigrate to Canada.

Since there is no filing fee for an I-765 based on a pending i-485, you should not pay for it seperately.