The offer letter must be non-contingent. 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. I am about to apply for a mortgage application using a job offer letter. The lender asked for an offer letter, and said the job Offer that I accepted on is too contingent to use. HR says they don't know, but are going to ask payroll. College graduates can qualify for home loan with job offer letter and their college transcripts can be in lieu of 2 year employment history. Lenders can approve home loans based on an offer letter for people between jobs or starting at a new company when they move. First time home buyers can have a loan talk with our community experts and discuss their home loan related issues in mortgage loan forum. If you have an offer letter and haven't started the job yet, you can still be eligible to buy a home.