Can somebody with a tourist visa to request for an extension more than once?

Yes she may apply for a second extension but must do so prior to the period of previous extension.

The category is C9 through marriage based adjustment.

Hire a good criminal defense attorney and work with an immigration attorney to review the outcome of the case.

Yes you may send an invitation letter but he must establish his ties to his home country.

Last week I had my citizenship exam. They give me letter A decision cannot be made about your application

This does not appear to be a cause of concern for the N400. Be patient as the decision should come within 120 days.

Yes you may submit a second case and can withdraw the first.

What do I expect next?

It appears that your case has been denied.

How i close removal proceedings??

Best to use the Avvo search tool to find an attorney that is best suited for your case.

Conditional resident and Covid test?

No this shouldn’t be used against you in the future.

How to contact USCIS for correcting the mailing address as an incompleteaddress given and the greencard couldn't delivered?

You should use form AR11 for change of address.