Belvoir Sunderland received positive testimonials from several landlords praising their customer service and property management. Landlords commented that Belvoir responds quickly to inquiries, provides regular property inspections and updates, finds stable tenants, and helps ensure smooth tenancies. One landlord noted that Belvoir went above and beyond to help them out of a difficult situation when their previous agent went out of business. Overall, the testimonials emphasized Belvoir's professionalism, reliability, and high quality of service.