The key, in my opinion, to avoid issues with the FCP is to demonstrate that the issues with the FCP are not of your own making and beyond your control
Say a soldier
is married with a special needs child. Then say the soldiers wife dies. And the soldier is not able to obtain care for the child (due to the child's needs). Certainly, in that case, the soldier is in violation of the Army
Regulation that covers this...but the soldier is not truly at fault. In such a case, I would expect a Ch 5 discharge with an honorable characterization.
Another example: Say a single parent with sole custody of the child joins the Army, and at the first duty station makes it clear they do not want to remain in the Army. This soldier tries to obtain a discharge for a medical condition. When this fails, they then claim that they can not find child care for their child.
The would be on the opposite end of the scale from the above example...and at best would result in a general, under honorable conditions discharge, but could very well lead to charges of dereliction of duty
(for failure to complete a FCP)
So for your case, where you fall in the spectrum (from the lack of FCP was not your lack of effort or planning but circumstances beyond your control to the lack of FCP was your plan to get out of the Army). The more you can show that this was unexpected? The less likely they would try and take adverse action (like a board of inquire to separate for misconduct)
What you describe? It sure sounds like this was beyond your control.
That is why I suspect you have little to worry about
Plus...you have a good lawyer.
Let me know if you have more questions...happy to help if I can