I was asking a similar question not too long ago..
In short, if you are the spouse of an active duty US citizen “regularly stationed abroad” I believe if the term USCIS have used, and you are listed on your spouse’s orders as a dependent, you CAN apply for expedited Naturalization WITHOUT applying for the I-751 to remove conditions on your conditional green card. You need to have orders for at least 2 years I think, but take a look at some of the information below, it links to the policy manual and the exceptions where the time frames required are explicit.
The big IF here, as you stated was ensuring that your application is sent and in process before the 90 day expiry window of your green card opens. Otherwise, like me (😔) you WILL have to apply for that removal of conditions then Naturalization.
I spoke to the military helpline who weren’t a great deal of help, pointed me to the US Embassy here in the UK who pointed me to the USCIS military helpline.. I’m sure you can see where that went!
Unless you’ve had some really awful experiences and some issues regarding your immigration past, I wouldn’t personally recommend a lawyer. There’s a lot of support here on the forum and you’re best to save your money. Read as much as you can and you’ll be okay, ask all the questions you need too. That’s how we’ve gotten this far!
See if any of the info here helps: