A relative came to the US as a tourist (no tourist visa-only 90 day stay tourist) almost 2 years ago. He now got married to a US citizen and is wondering if this affects his AOS procedures. He also wants to know in case of having to go back to his home country between the time of the EAD and the AOS interview and returns back into the US, will he encounter problems with the INS? Or, shouldn’t there be any problem if he just shows the legal travel document (advance parole) to the INS? Any advice is appreciated - Thank you.

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Which state or city is known to be kind of quicker between the time of EAD approval and AOS interview? I've heard Hartford, CT and Philadelphia, PA is just about 3 months to get an interview. Is that correct?
Since, his dad has now some health issues back home in his home country and if something seriously would happen to his dad. What is he supposed to do? He cannot just forget about his dad then, right? In emergency would there be a resolution in this case? Or, is the INS just not HUMANE?