F4 priority date process and time frame

[pastorandrea 0]

Hello, my uncle, who is a US citizen applied on behalf of my family through applying for my dad (his brother). Of course, my family are categorized as F4s and their priority date is Oct24,2005. According to priority date calculators and the general speed at which the visa bulletin is moving their priority date will be up this coming Dec 2018. Here’s the dilemma... my brother turns 21 just three months after December 2018 on March 31st, 2019. Will he still be able to get his visa or will he not have enough time to do so before he turns 21? If not, my first questions is... does he qualify for CSPA? I’ve read so many differing opinions. My family has been living in the US with TPS since we came. We entered inspected and have our I-94s. The problem is we need to have some type of new status by the time September 9, 2019 comes around because that is when our TPS designation expires. Basically my second question is, Can you tell me what the process from the time your priority date becomes current to the point where you have some legal status in the country is and approximately how long it takes?

Also, are there any things we need to do before their priority date becomes current? How do we know when it becomes current?

[Boiler 45,670]

Well I can think of quite a few questions but even with those answers not sure I would be comfortable with a definitive answer, seems to me asking your Lawyer would be the best call.