Hi @MichaelJuan.198 did you only fill N-400 form or have you already filed it with USCIS? There's a distinction. If you haven't filed, not a problem, just print out a new form, fill it with the name you want to have, and then file it.
I do not believe (people can correct me) this should cause any issue. USCIS may be curious as to why you're changing your name completely (is this related criminal stuff? Does he owe money? Etc). If you have a good explanation and reason, you should be OK.
The worst case scenario you're get naturalized under your old name. Even if for whatever reason you're denied N-400, you can always refile it.
Also, N-400 interview is a great chance to make any form corrections. If you no longer want to change your name at the time of inteview, you can tell Immigration Officer, and he will correct it.
Before you change your name completely, consider the following?
- Passports, bank account details, other docs in your home country will need to change.
- US stuff such as driver license, SSN card, banks etc will need to change
- Education documents, immigration documents would no longer match your name. Meaning you will have to explain and provide evidence of name change in the future.