Advise Real Property Management Diamond Bar, Ca. Advise Property Management provides quality property management services in the beautiful city of Upland. We make sure you and your tenants have the best experience possible. Our primary goal is to offer the best property management experience in Diamond Bar. We utilize our “proprietary property management technique” to acquire and maintain the best tenant relationship possible. If you currently have a tenant we will improve that relationship and make it better. If you require a new tenant we will do our due diligence to acquire the best. Whether you are a new property owner or an experienced landlord we will treat you and your property like it's one of ours. At Advise Property Management we realize that your time is money. We ensure that you have a worry free experience so that you can focus on your primary business. We can handle as many properties as you may have, just call us for your free property management analysis and we'll get started. Diamond Bar is a city in eastern Los Angeles County, California, United States. As of the 2010 census it had a population of 55,544, and in 2019 the population was estimated to be 55,720. It is named after the "diamond over a bar" branding iron registered in 1918 by ranch owner Frederick E. Lewis. The city features a public Los Angeles County golf course. It is also home to the Diamond Bar Country Estates, a private guarded community. Located at the junction of the Pomona and Orange freeways, Diamond Bar is primarily residential with shopping centers interspersed throughout the city. It is surrounded by the communities of Brea, Walnut, Chino Hills, Rowland Heights, Pomona, and City of Industry.