For a visitor visa to be approved, the applicant must show non- immigrant intent. A K1 visa shows immigrant intent. Consult an immigration lawyer...

Your question is not detailed enough. Plus at this point you should have retained an Immigration attorney.

I agree with my colleague. However there are exceptions to the statute of limitations; Is there a valid/statutory reason why you waited for this...

Also if you have a letter from USCIS dated 90 days prior with the same address, that is even more tenable.

This is possible. Retaining couple will help illuminate the blurred line and provide clarity.

Its best to wait 90 days before filing as others have mentioned. Use this time to gather your evidence.

Did you already do the interview? or it just shows as interview scheduled?

No it is not against the law. They are actively working to fix it, not that they abandoned you. Wait. Plus they are not yet legally required to...

I want to believe that the pet fee is not the 8k plus screenshot he sent you. If that's the case, apartments reserve the right to charge you a pet...

Do you have a copy of the petition you filed?