About us. Riddle & Pringle LLC. We are a small family-owned CPA office in Easton, PA with a loyal, growing clientele. The office has been practicing for over 20 years. Responsible for preparation of individual and business tax returns. Experience with complicated individual returns is necessary. Experience with preparing corporate 1120S and 1065 returns a plus. Limited client interaction via phone and email will be required. Must have understandi...