Commercial Lease Review: 8 Clauses Ontario Business Owners Should Check
A commercial lease can tie up your business for years. These are the clauses to understand before you sign an offer to lease or a lease in Ontario.
Read articleCorporate · Real Estate · Estates · Immigration
Legal advice and solutions for sole proprietors, corporations, investors and families. Arthur Liangfei Tan helps clients set up and protect their businesses, close property deals with confidence, and put their personal affairs in order.
Know more about
Arthur Liangfei Tan is a lawyer in Ontario with Sun Law Professional Corporation. His practice is built around the legal needs of people who run businesses and invest in property — from the sole proprietor signing a first supplier contract to the corporation negotiating a commercial lease.
Much of his work is preventive: structuring a company correctly, drafting agreements that close loopholes, and reviewing documents before they are signed. When a disagreement does arise, he looks for a practical, cost-conscious resolution and keeps clients informed in direct, plain language at every step.

Areas of expertise
From incorporation and commercial contracts to property closings, estate plans and notarized documents, Arthur Liangfei Tan provides legal services across six areas.
Incorporation, share structure, shareholder agreements, minute books and the purchase or sale of a business.
Learn more about Corporate Law
Contract disputes, unpaid accounts, shareholder and partner disagreements, with negotiated settlement explored first.
Learn more about Commercial Litigation
Residential and commercial purchases, sales, refinancing, investment property and commercial leases.
Learn more about Real Estate Law
Wills, powers of attorney, business succession and estate administration for families and owners.
Learn more about Wills & Estates
Guidance on immigration options, applications and supporting documents for individuals, families and employers.
Learn more about Immigration
Certified true copies, affidavits, statutory declarations, travel consent letters and documents for use abroad.
Learn more about Notary PublicThe process
Briefly describe your matter. We confirm there is no conflict of interest and book a consultation.
Your documents and goals are reviewed, and the legal risks are explained in plain language.
You receive a recommended approach, a timeline and a fee estimate before work starts.
Agreements are drafted, deals closed or filings made, with copies of everything for your records.
From the blog
A commercial lease can tie up your business for years. These are the clauses to understand before you sign an offer to lease or a lease in Ontario.
Read articleThinking of moving from sole proprietor to corporation? This checklist walks through the legal decisions and documents involved in incorporating in Ontario.
Read articleFinding the right legal professional can make a significant difference when dealing with important personal, property, business, or immigration matters…
Read articleQuestions
Yes. Clients range from sole proprietors and start-ups to established corporations, as well as individual property buyers and families.
Corporate law, commercial litigation, real estate law, wills and estates, immigration and notary public services.
No. Many matters can be handled by phone, email and video. In-person meetings are available at the Sun Law office at 2425 Matheson Blvd East, Mississauga.
Fees are explained at the start. You receive a fee estimate or fixed fee where possible before any work begins.
No. It is general information. A lawyer-client relationship begins only after a conflict check and a confirmed retainer.
Send a short description of your matter and we will contact you to arrange a consultation with Arthur Liangfei Tan, in person or by video.