Yes, a person in the U.S. in J2 status can apply for a change of status to J1, that should not be a problem and yes you should be able to do it.

There is no rule against you applying, nor is there any law against you being approved. You will have a very heavy burden of proof that your trip...

I do not believe that "serious damage to property" is a defined term anywhere in American law Therefore, the common meaning would apply. Serious...

There is no law against apply for a social security number and getting a social security number for anyone for any reason.

Try filing thirty days before the semester starts and pay the premium processing fee so that you can get an approval before you start classes and...

If you are no longer able to support your parents, and it comes to the attention of USCIS, then they may not be able to approve your parents'...

It depends on the facts . Previously means in the past. If you filed an I-485 before, then you say "yes". If you did not, you so "no".

You should contact an immigration lawyer, or the Costa Rican embassy to determine if you can travel to Costa Rica. The U.S. does not determine who...

It is certainly possible there will be a problem. Be sure to file for a corrected card ASAP and perhaps that will clarify matters on your return...

Coming to the U.S. before age 18 is not enough information to know if you are a derivative U.S. citizen. Perhaps it was after the child...