A commitment letter is a document that states someone's promise or pledge to do something. It is a written agreement or confirmation of their dedication and loyalty towards a specific cause, task, or relationship. Full definition
These documents constitute the application along with the lender's complete loan analysis, commitment letters from all participating funding sources, and documentation for any new equity contributions. (famemaine.com)
Typically, lenders provide mortgage commitment letters with a few conditions. (creditdonkey.com)
I have applied for a mortgage from a mortgage broker and he recently gave me a loan commitment letter. (money.stackexchange.com)