A mortgage broker's job is to find the best loan product for a customer, oftentimes for customers who have trouble finding a mortgage as a result of credit issues or difficulty with presenting verifiable income.
Most banks and lenders now require a minimum of two years of tax returns with verifiable income to get a mortgage and your debt-to-income ratio must be in line with guidelines based on these records.
Of course, with a good credit score and a high, verifiable, and steady income, it is not impossible to obtain this type of mortgage, but lenders may still not jump at the chance to provide them.
In order to be considered, you must have at least eight years of relevant verifiable work experience, hold verifiable United States citizenship, and be between 20 and 55 years of age.
If you are going to write on a subject, then make sure you are an expert in the subject with verifiable sources, which should mainly be online so readers can find other information.