A remote work letter for mortgage verification needs to confirm the terms of employment, including that you're allowed to move and live somewhere else. Mortgage lenders may request a letter to verify your employment.Here's a simple template you can give to your employer to speed things up. A mortgage lender might ask you to write a letter of explanation to better understand your finances when deciding whether to approve you for a loan. Some buyers can use an offer letter mortgage to qualify for a home loan before starting their new job. Here's how offer letter loans work. Mortgage lenders might request a letter of explanation for various red flags that come up in underwriting. Learn how to write one, and download a template. A letter of explanation is a brief document you can use to explain something, like a previous bankruptcy, in your financial or employment history. 1. Download the employment letter template.