| Bringing strategy, equity, and experience to historic building development MacRostie Historic Advisors (MHA) is now part of Ryan – learn more about Ryan’s credits and incentives work here: https://www.ryan.com/practice-areas/credits--incentives/. MHA provides historic preservation consulting services on a nationwide basis to developers, lenders, and investors active in the rehabilitation of historic income-producing real estate. In our practice, we place particular emphasis on providing clients with a strategic approach to the historic tax credit certification process, ensuring timely and successful project certification with a minimum of design changes. We work collaboratively with clients and project teams to identify creative solutions that balance client and project objectives, regulatory requirements, and historic preservation principles.