Does an unmarried child of age 23 can get visa with parents in category F4 i-130 petition ?

To my knowledge the restriction was not taken away. However the child status protection act might help.

Can I work on a cruise ship on C1D visa (i previously was a crew member)while waiting for my EAD which I filed on L2 visa?

If my understanding is correct you have a pending L application. Working on a different status would require filing a change of status or...

The first it is okay to leave as not employed and no explanation is needed. The second, I generally say "No" and write that you will take a...

Yes, you are permitted to do volunteering of this sort so long as this is typically a volunteer position. I'm sure the animals appreciate your work!

What if I can’t attend the i-90 biometric appointment through I don’t need it anymore?

Hello, yes, please attend your biometrics appointment and let them know that you are withdrawing this case. Call USCIS and also inform them about...

I filed for I-130 in August 2017 and received the letter saying “information was received” . What’s my next step?

You may need to file a service request to get your I-130 adjudicated before you submit documents for the next stage in the process.

Photocopies of financial support for I-539?

photocopies are typically acceptable

Can my parent's attain citizenship from their American citizen kids?

How did the parents enter the USA? Did they come in with a visa (or with "inspection"?) If they crossed the border without a visa or without any...

Wage Level RFE's have been extremely common in the last few days and are tricky to respond to. Given your 16 years of experience, your employer's...

About are interview for the first time about marriage and the green card?

I think you need to consult with an immigration attorney and discuss the details.