I agree - is there a reason why you waited to so long to ask these questions?

I would like to extend my stay in the US and I'm not sure if it is at all possible

Attorney Donald has provided excellent advice and you are encouraged to follow it.

Him staying out for so long on parole document would effect his application processing time or chances of entering back in US?

He needs to re-enter the U.S. before his parole document expires.

Which of the two ways is easier to follow, family based GC or work based GC?

You don't say your country of origin so it is hard to be sure but most likely the employment-based route will be faster for you.

How long does the landlord have to rectify the issues at the home one violations are cited?

It would be helpful if you gave more details on what the citations were for.

How do I evict a tenant from my single family home He is subletting to others & has made changes to my home but owes no rent

By answering the questions posed by the attorneys, you can obtain more information

Was I properly served a pay or quit notice?

I would just like to add that regardless, it seems that you received actual notice.

Administration fees are very, very common

Please let me know process to report to USCIS&Secretary of state about my divorce-remove her name from my nonimmigration record

The report goes to the embassy, not the secretary of state.

What type of visa do I need to go on to open a small business if I am Canadian and my partner is American?

It is unclear if you want to start a business or a non-profit.