What are "Professional Mortgages"?
Professional Mortgages are products offered by some lenders to "professionals". In the main this will allow for additional levels of lending for certain professions.
This list is dictated by the lender, a lot of the time this will be solicitors, doctors, pilots, chartered surveyors or accountants. Some will require you to be registered with professional body.
Lenders understand that trainees in these fields will see steady increases in salary and these professions have a strong track record of a stable work environment which warrants a higher lending amount, usually up to 5.5x income.
The lenders offering these advantages to professionals are usually more on the specialist lender side and so the rates can be higher than high street lenders.
These days, there are a few high street lenders who will offer 5.5x income within certain parameters. The majority of the time it would be cheaper to go down this route if you can. It's important to check over all of your options, that's why a whole of market broker is key when you're reviewing options.