Do not wire money through services such as as Western Union.
Avoid transferring money to strangers.
Meet your seller in person, face to face. Purchase local goods.
Verify that the product exists and check if its works.
Avaluos Inmobiliarios en Mexico D.F. Avaluos de Casas Comerciales, Fiscales y Catastrales, Maquinaria y Activos Fijos.