Landlords need to see financial information from prospective tenants to determine if they want them in their buildings. The stronger a tenant is financially, the more attractive they are to the landlord. Typically, if all other aspects are equal, landlords will choose the tenant that is stronger financially. If a potential tenant doesn’t have financials that are appropriate for the price space they want, a landlord will either: reject the tenant or ask for a personal guarantee.
Landlords also use a tenant’s financials to determine the security deposit they will require for the lease.
The standard documentation requested is the first 3 pages of the last 2 years of the company’s tax returns. If the company is a start-up or the tax returns are not a good indicator of the company’s standing, a prospective tenant should include other information such as bank statements and statements certified by their accountants such as profit/loss, summary of assets, etc. (basically anything that is evidence you are a strong company).