Stressed Out

So my husband has been living in the US legally since January 2015. He's been eligible to naturalization for over a couple of years, but we've procrastinated due to work and recently adding a LITTLE ONE to the family as of 2018 (yay!). Now that we moved into a bigger house and are settling in, he's decided he won't even bother submitting a Bbg with the German government to retain his citizenship. He's warmed up to calling America his permanent home, so he's prepared to move forward with his N-400 packet. Wish us luck! His is a pretty simple app since we've both only been married to each other, no criminal records, always paid taxes, recorded address changes, signed up for SSS, etc.