Can the other side bring a lawyer to small claims court in Washington?
Answered for: Washington
No attorney-at-law, legal paraprofessional, nor any person other than the plaintiff and defendant, shall appear or participate with the prosecution or defense of litigation in the small claims department without the consent of the judicial officer hearing the case. A corporation may not be represented by an attorney-at-law or legal paraprofessional except as set forth in RCW 12.40.025.
This is Washington's rule on attorneys in small claims court.
This answer is true in Washington and nowhere else on this site. Another jurisdiction is another answer, or an honest gap: see what has been read for Washington.