When Adriana Trejo and her two kids moved into their Dallas apartment, they didn’t need for a moving truck—their furniture consisted of two mattresses and a small sofa. Trejo had saved enough for first and last month’s rent, but the budget left little room for anything else. She was prepared to make do, but then Dwell with Dignity selected her for an HGTV-worthy makeover.Interior designer Lisa Robison started the nonprofit in 2009 to serve families experiencing homelessness because she believes in the “transformative power” of design. “Oftentimes it’s people who can least afford it who can benefit from it the most,” Robison says.Dwell with Dignity has since partnered with social services agencies, design firms, retailers, major fundraisers like the Kips Bay Decorator Show House, and…