US Immigration from El Salvador

Greetings everyone. I am trying to get my mother in law and father in law to visit the states and spend time with our family. A while back when my wife was under pending status for her green card we applied for a tourist visa for her mom only and was denied for lack of strong ties to her country.

Background:

I'm a US citizen and my wife is a permanent resident now with her 2 year resident card.

Country of origin is El Salvador

I have good income and write has some income now. Her family has little income and little assets (a little cashflow/savings and a small parcel of land they are building a home on) I can show affidavit of support and proof of trip coverage, which I did last time as well.

Her mother has no immigration red flags and has positive travel history to Canada being granted tourist visas there twice. Father has little travel history except to neighboring countries.

Also last time the interviewer found it strange we only applied for her mother and not her father and we believe that may have contributed to the denial. The reason we did that was we wanted to get one approved at a time instead of throwing away money at embassy fees if there was 0 chance. If we did this again we would do both at the same time now.

But before I do anything I want to know if we have a chance at all. If there is anything wrong can do for my mother and father in law to visit us. Writing a congressman? Open to any ideas.

I keep getting an error when trying to pay for the AOS Fee. Is anyone else having issues making payments? The error message just says to try again later.

everything went well was have a green slip since my passport was to used was told turn it in a new one today so I did but my CEAC say AP. any one has experience this how long do it takes to get passport back and CEAC to change to issued

I expidated my case is at the embassy how long till I can request for my medical so far no more update since yesterday

lost the original and will a certified marriage certificate work been certified by the county that my marriage was registered at? any one