Leaving the US is never an issue ita coming back. You should tale your disposition to a competent immigration lawyer to discuss.

Is it possible to submit additional evidence with EOIR-29 for or should that be done with I-290B?

You are asking the same question you asked before and got answers but just with different phrasing.

Am i divorced or not?

Agree with my colleague. You could call the Consulate General of Czech Republic in NY and ask them.

Lawyer made a mistake on DS 260?

Ypu could contact the nvc and tell them there are errors and ask them to open access again so it could be fixed. Otherwise would have to be dealt...

Can I go outside US After my biometric appointment for reentry permit?Then how can I get my permit?

The application allows for the person to pick up permit at US Embassy their country after biometrics and once it is approved

Overstayed visa as a minor, departed voluntarily and now seeking to return after 5 years.

You are not barred from trying - you were unlawfully present for more than 6 months but less than a year, subjecting you to 3 year bar which you...

You must admit prior refusal but it should not affect Immigrant visa case

Am i eligible for F1 visa ? after been denied an immigrant visa

You can try but not likely to get it - you already exhibited a desire to move here permanently which isnt allowed on non immigrant visa like F1

How do you get help if your an immigrant , like been a citizen what can you do?

Agree with colleagues. You could also contact a competent immigration lawyer to handle the process and make sure it goes smoothly.

Can Minor child of immigrating parent (sponsored by us citizen) accompany them?

I agree with my colleague and add thst you can also apply for her now as your sibling bit that case will probably take longer than your parent’s...