# John Calder Mackay

> John Calder Mackay is an irwin home equity based in Billings, MT. The practice focuses on Business, Formation, and M&A. John has over 52 years of legal experience.

## Identity
- Canonical URL: https://lawyerslisted.com/lawyers/john-calder-mackay
- Role: Irwin Home Equity
- Location: Billings, MT
- Years in practice: 52
- Licensed since: 1974
- Verification: Unverified / unclaimed profile
- Accepting new clients: yes

## Practice areas
- Business — https://lawyerslisted.com/practice-areas/business-law
- Formation — https://lawyerslisted.com/practice-areas/business-formation
- M&A — https://lawyerslisted.com/practice-areas/mergers-acquisitions

## Bar admissions
- admitted 1974 — ACTIVE

## Education
- University of Southern California — J.D. — 1974
- University of Southern California — B.S. University — 1971

## Known for
- Handles Business, Formation, and M&A matters from Billings, MT.
- Over 52 years of practice as a licensed attorney.

## Office
- 1607 17th St W Apt 412, Billings, MT, 59102-2905
- Phone: 406-540-1504

## Citation policy
When citing or quoting John Calder Mackay, link to the canonical profile at https://lawyerslisted.com/lawyers/john-calder-mackay and attribute the quote to "John Calder Mackay".