SenecaOne Finance | 2,217 followers on LinkedIn. Your Trusted Source® is here to help when life happens! Creating long-term relationships with someone you can count on. | SenecaOne is your trusted source ® for helping structured settlement recipients, lottery prize winners and other annuitants access the cash they need, when they need it. Since 2002 we have grown to be one of the largest financial services companies of its kind in the country, and have earned a reputation for outstanding customer care. We are headquartered in Bethesda, Maryland just outside the nation’s capital with additional offices in West Palm Beach, Florida.