US Immigration from Paraguay

Hello. Looking for experiences traveling outside of US for less than 1 year with Green Card. Is there any value to get a reentry permit vs just using the Green Card (as long as trip is less than 1 year). Trying to determine if the reentry permit does anything more during reentry. And the trip will last less than 1 year. (I know if it were more than 1 year, the I would need to get a reentry permit).

Does somebody know of a good, reasonable price, and reliable divorce mediator in Tampa to recommend?

Does anybody knows when it is wise to file for divorce after receiving the ROC on my greencard? my U.S. husband broke up with me a couple of months ago (we have been struggling for a while before that) and now I am torn between file for divorce, considering that he is someone very irresponsible and I am afraid I will be affected by his bad financial decisions and not messing my citizen application up. I am already elegible to apply but I haven't had the money to talk to an immigration lawyer yet. Your help will be much appreciate it.

I just received my visa stamp, but still have not entered the US (will do this in the next 30 days). Is there a time on when I could petition for my child, start the filing of the i-130? Meaning do I need to wait to enter US first then apply for the F2a, specifically starting the i-130 or can I do that before entering the US?

As a permanent resident, you can file for you spouse. Then you can add derivatives (children) to the F2. Has anyone been in the case where the spouse decided not come to US, but derivatives (children) still wanted to (and could they)? Assuming the spouse (and derivatives) went through the process and received the visa but only spouse decided not to use it.