The commercial mortgage documents a lender needs to move your file from a conversation to real terms.

The building has to speak for itself. A current rent roll showing unit mix, rents, vacancy and lease expiry is the first thing an underwriter opens. Copies of the leases back it up, especially anything with a large tenant or an unusual clause. Add the most recent appraisal if one exists, an environmental Phase 1 for anything industrial or with a history of commercial use, the current property tax statement and an insurance binder showing coverage and the loss payee. Operating statements for the last two years round out the picture, because net operating income is what sets the loan amount.
Lenders underwrite the sponsor as closely as the asset. Prepare a personal net worth statement with supporting detail on other properties held, a signed credit consent for each guarantor, corporate records for the borrowing entity showing directors and share structure, and two years of financial statements for the operating or holding company. A short biography covering what you own and what you have built carries real weight on construction and value add files.
One page, plain language. Purchase price or the refinance amount you are asking for, the use of funds broken down honestly, the equity you are contributing and where it comes from, and the timeline including any firm dates. If the file is a refinance, say what the existing debt is and how it gets repaid. This page is what a broker turns into a lender submission package, and a clear one gets read first.
Completeness beats speed of submission every time. A commercial deal submission in BC that arrives with the rent roll, the leases and the borrower package together will usually get terms while an incomplete file is still collecting emails. Flag the problems yourself: a vacancy, a soft tenant, a past environmental issue. Underwriters find them anyway, and a disclosed issue is a condition while a discovered one is a decline. Answer questions in hours rather than days, and keep one version of every document so nobody is comparing two rent rolls.
Borrowers can send what they have and we will tell you what is missing. Referring brokers keep the client and get paid at funding.