O'Brien Law Firm is located at 38027 Euclid Ave, Willoughby, OH. This business specializes in Elder Law Attorneys. O'Brien Law Firm is open Mon, 9am-5pm; Tue, 9am-5pm; Wed, 9am-5pm; Thu, 9am-5pm; Fri, 9am-5pm; Sat, Closed; Sun, Closed and accepts Cash and Personal Checks.