
Free consultation
Buy or Sell a Business? M&A Advisory
Buy or sell with confidence—CPA-led valuations, due diligence, tax-efficient deal structures, and post-close integration that maximize value and minimize risk.
35+
years completing Quebec buy- & sell-side deals
400+
diligence, valuation & integration engagements
99%
on-time deliverables for LOI and closing milestones*
2-6
weeks typical QoE/diligence timeline*
Our Core Buy- & Sell-Side M&A Services
Buy-Side Advisory
Target screening, valuation, financial/tax due diligence, and negotiation support—so you acquire the right business at the right price with eyes wide open.
Sell-Side Advisory
Sale readiness, CPA-certified financials, normalized earnings, and data room prep—position your company for premium pricing and fewer closing adjustments.
Business Valuation & Fair Market Value Analysis
Defensible FMV opinions using income, market, and asset methods—trusted by lenders, investors, and regulators.
Financial Due Diligence (QoE & Working Capital)
Independent quality-of-earnings, revenue recognition, and net working capital analyses to surface risks, normalize results, and inform purchase price mechanisms.
Deal Structuring & Tax Planning
Share/asset structure, earnouts, rollover equity, and elections optimized to reduce tax and improve after-tax proceeds—aligned with CRA/ARQ rules.
Post-Merger Integration (PMI)
Day-one and day-100 plans to unify systems, controls, and reporting—turning identified synergies into measurable results.
The Mackisen Advantage
One coordinated team of CPA auditors, tax lawyers, and valuation specialists
Reports aligned with IFRS, securities, and governance best practices
Clear, data-driven insights that accelerate decisions and de-risk closings
Proven playbooks for buy-side, sell-side, and family-business exits
Banker- and investor-ready documentation and models
Confidential, bilingual execution from LOI to post-close
* Timelines and outcomes vary by scope, data quality, and counterparty responsiveness.
01
Do you offer bilingual service (EN/FR)?
02
How do your fees and packages work?
03
What industries do you specialize in?
04
Do you offer a free consultation?
01
Do you offer bilingual service (EN/FR)?
02
How do your fees and packages work?
03
What industries do you specialize in?
04
Do you offer a free consultation?
01
Do you offer bilingual service (EN/FR)?
02
How do your fees and packages work?
03
What industries do you specialize in?
04
Do you offer a free consultation?

Close on Stronger Terms.
Book a free M&A consultation—our CPA team will scope your deal, deliver investor-ready analyses, and structure a tax-efficient transaction from diligence to day one.
Talk to an expert

Close on Stronger Terms.
Book a free M&A consultation—our CPA team will scope your deal, deliver investor-ready analyses, and structure a tax-efficient transaction from diligence to day one.
Talk to an expert

Close on Stronger Terms.
Book a free M&A consultation—our CPA team will scope your deal, deliver investor-ready analyses, and structure a tax-efficient transaction from diligence to day one.
Talk to an expert
Trusted by 5000+ customers
Trusted by 5000+ customers
4.7
From 100+ ratings
Caroline
Review on Google
I can confidently say that they deliver a level of service that goes beyond expectations. From the very beginning, I felt like I was in good hands.
Mary Michelle Reyes
Review on Google
I had my taxes done at Mackisen Consultation Inc., and I couldn’t be more satisfied. The technicians were not only highly skilled but also took the time to explain every detail.
Houman Gholipour
Review on Google
I do my taxes for me and also all members of our family with Mackisen since more than 25 years. They are very reliable and very patient and quick to support and react.
Joey D
Review on Google
I've been going to Mackisen for over 20 years to do my taxes and for other financial advice. I couldn't be happier with their service, making finance easy to understand.
Our Core Audit & Assurance Services
Financial Statement Audit (IFRS/ASPE)
The gold standard in financial reliability. We conduct independent audits that verify every figure in your financial statements, producing an auditor’s report with full assurance and credibility. Audited financials earn immediate trust from banks, investors, and regulators—enabling smoother financing, mergers, and growth.
Review Engagement (Mission d’examen)
When a full audit isn’t required, a review provides professional credibility at a lower cost. Through analysis and inquiry, we ensure your statements are plausible and accurate, giving lenders moderate assurance and improving borrowing potential.
Compilation (Notice to Reader / Mission de compilation)
Ideal for small businesses seeking clarity and organization. We compile your financial information into professional CPA statements that strengthen loan applications and internal decision-making—even without an audit opinion.
Special Purpose and Compliance Audits
For grants, government funding, or lender covenants, we perform targeted compliance audits. Our reports help you meet the requirements of regulators, boards, and funding agencies with confidence.
Internal Controls and Risk Advisory
Protect assets and reputation with a control audit that identifies weaknesses before they become problems. We review accounting systems, fraud prevention, and IT safeguards to enhance reliability and boost lender confidence.
IFRS/ASPE Conversion and Advisory
Transitioning from ASPE to IFRS or preparing for an IPO, merger, or acquisition? We manage the conversion—from policies to restatements—ensuring compliance and clarity for global investors and partners.
The Mackisen Advantage
Financial statements accepted by major banks and investors
Faster loan and financing approvals
Lower borrowing costs through verified transparency
Stronger confidence from investors and boards
Full compliance with IFRS, ASPE, and Quebec CPA standards
Comprehensive review of internal controls and fraud prevention
All our services
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