This is a clear example of why we don't rush to send any application, especially if there is no deadline to submit.
This is also an example of why some attorneys might be more interested in the $$ than helping the applicant.
Furthermore, this is also an example of why an "immigration" lawyer should never give tax advice. There is no point in waiting to file 2023 taxes to download the 2019-2022 tax return transcripts. They are readily available now. I'm sorry, but it sounds to me like this lawyer does not know what they are talking about.
Even though the last five years of taxes are not a requirement for initial submission, it is, indeed, in one's best interest to include them with the initial application. The more relevant information an officer has when reading the application, the higher the chances of a speedy approval.
Taxes not only prove that you were married, which you weren't. Taxes prove good moral character.
The employment part is a non- issue. Simply prepare an errata sheet, print it, sign it, and bring it to the interview. Before you are sworn in, tell the officer that you have some corrections to make. I did this with more "compromising" information such as weapons training. I am now a citizen.