"Some ( actually most) motherboards have default passwords to bypass the bios password. Though it takes quite a bit of research to find these".
Care to give some examples of modern laptop models?
The password function is there as a data protection and a theft deterrent. If it were easy to get around then it would be ineffective. Therefore it isn't easy to get around.
To both the posters at the top. If you are the legal owners of the laptops then contact the manufacturer of the unit for help. If not, then don't come here for help.