MacRostie Historic Advisors

What MacRostie Historic Advisors does

MacRostie Historic Advisors (MHA) is a specialist professional services firm focused on the U.S. Historic Tax Credit (HTC) program. Founded in 2004 and headquartered in Washington, D.C., the firm advises real estate developers and property owners on securing federal and state historic rehabilitation tax credits for income-producing historic properties, including 20% federal credits administered by the National Park Service and Internal Revenue Service, plus state credits across 35 states that can push combined incentives to 45% of rehabilitation costs. Its service modules span Federal HTC consulting, State HTC consulting, regulatory review, National Register of Historic Places nominations, and preliminary due diligence — collectively covering the full lifecycle of an HTC project from eligibility assessment through application certification and credit monetization.

MHA has completed thousands of HTC projects since its founding, navigating complex multi-state credit applications and stacking strategies that combine federal HTC, state HTC, Low-Income Housing Tax Credits, and New Markets Tax Credits. The firm's professionals joined Ryan, LLC, a global tax services firm, creating what Ryan describes as the "preeminent HTC team in the U.S." and integrating MHA's specialist expertise with Ryan's broader credits and incentives practice. Engagement is project-based and quote-driven, serving enterprise developers across hospitality, mixed-use, office, and manufacturing projects (e.g., TWA Hotel, Harrison Square, 3201 Allen Parkway, Wayne Dalton). Earlier inorganic activity includes MHA's September 2018 acquisition of Clio Associates, which expanded its HTC advisory capacity prior to the Ryan integration. The combined HTC practice operates within Ryan's global delivery network spanning the U.S., Canada, Europe, and Asia-Pacific.

Name

MacRostie Historic Advisors

Legal name

MacRostie Historic Advisors

Website

https://macrostiehistoric.com

Company type

Private

Founded year

2004

Operating status

Acquired

Headcount range

11–50 employees

Short description

MacRostie Historic Advisors is a specialist tax advisory firm that helps real estate developers and property owners secure federal and state historic tax credits for rehabilitation of income-producing historic properties across 35 U.S. state programs; the firm was acquired by Ryan, LLC to anchor its Credits and Incentives practice.

Ownership category

akta.pro rank

Product category

Tax Advisory Services

NAICS

Management, Scientific, and Technical Consulting Services (5416)

SIC

Investment Advice (6282), Services-Management Consulting Services (8742)

akta.pro primary industry

Estate Planning & Trust Structuring Advisory (FSAEAKAC)

Keywords

• Historic tax credits
• Tax credit consulting
• Rehabilitation advisory
• Tax credit advisory
• Historic preservation consulting

Headquarters

HQ city

Washington

HQ country

United States

HQ region

North America

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations

Revenue model

1. Tax Advisory and Consulting Services: Revenue generated through professional advisory fees for tax credit consulting services. Ryan's HTC team provides end-to-end services including regulatory review, due diligence, National Register nominations, and application processing for historic tax credit projects.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

MacRostie Historic Advisors provides advisory and consulting services focused on federal and state historic tax credits, supporting clients through preservation-related regulatory and incentive processes. The firm offers due diligence, regulatory review, National Register of Historic Places nominations, and project-specific consulting for historic rehabilitation engagements.

Product overview

MacRostie Historic Advisors (MHA) provides a comprehensive suite of historic tax credit advisory services as part of Ryan's Credits and Incentives practice. The core offering is Historic Tax Credits Advisory Services, which encompasses Federal Historic Tax Credit Consulting (the 20% federal tax credit administered by NPS and IRS) and State Historic Tax Credit Consulting (covering 35 states with combined incentives up to 45%). Supporting service modules include Regulatory Review Services, National Register of Historic Places Nominations and Local Landmarks Designations, and Due Diligence Services. The professionals from MacRostie Historic Advisors joined Ryan to create a preeminent HTC team in the U.S. that has successfully completed thousands of historic tax credit projects.

Differentiator

Problem solved

Functional benefit

Products and services

• Historic Tax Credits Advisory Services End-to-end advisory service that helps real estate developers, property owners, and investors navigate federal and state historic tax credit programs for qualifying rehabilitation projects.
• Federal Historic Tax Credit Consulting Consulting service focused specifically on the federal 20% historic rehabilitation tax credit, advising clients on qualification, applications, and compliance.
• State Historic Tax Credit Consulting State-level historic tax credit consulting covering the varying requirements of state HTC programs across the U.S. for rehabilitation projects.
• Regulatory Review Services Review service for historic preservation regulatory matters, supporting compliance with the Secretary of the Interior's Standards and related preservation requirements.
• National Register of Historic Places Nominations Service that prepares and submits nominations for properties to be listed on the National Register of Historic Places.
• Due Diligence Services Due diligence support for transactions and projects involving historic properties, including assessment of HTC eligibility and related risks.

Quantifiable outcome

• Federal historic tax credit of 20% for income-producing historic properties
• +2 more outcomes

Named customers4 records

Segments2 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Scale indicators4 records

Recent moves4 records

Expansion highlights4 records

Market position

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/macrostie-historic-advisors-llc

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A1 record

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about MacRostie Historic Advisors