Exceptional mixed-use investment opportunity located in the center of Sullivan's thriving downtown district. This prominent property combines income-producing commercial and residential spaces with significant upside potential for future development. The street level features three retail/commercial suites, two of which are currently occupied by established businesses, while the third presents an immediate opportunity for a new tenant or owner-occupant. Above the commercial spaces are two leased apartments, including a spacious three-bedroom, two-bath unit and a comfortable one-bedroom, one-bath residence, providing multiple streams of rental income. Adding to the property's appeal is nearly 4,000 square feet of unfinished upper-level space already in the early stages of conversion, creating the potential for several additional apartments and increased revenue. Historic character blends seamlessly with modern updates throughout the building, offering both charm and functionality. With valuable off-street parking, a prime courthouse square location, and room to expand your investment portfolio, this property is well-positioned for long-term growth and strong returns.