Sounds like a good idea to me. Those firms have offices in DC area, and are located in 20-story office buildings with corporate logo in large letters at top floor of building. Those firms have the “man (woman) power” to handle accounting and SEC filing requirements.
Hiring another accounting firm would probably mean that ARYC gets to start at ground zero again, and it will take "8-12 weeks" per 10K. That would mean that it would be many months before they would be filing...