Domestic Long Hair is a coat description, not a breed. The label covers mixed-ancestry cats with medium to long fur, and they come in every color and pattern, from tabby and calico to solid black and smoke. Some look a lot like a Maine Coon or a Persian without sharing that ancestry. Most adults weigh 8 to 12 pounds, though the fur can make them look bigger.
In a city of apartments and rentals like Richmond, the coat is the main care task. Brushing several times a week prevents mats and hairballs, and more often during seasonal shedding. Personality depends on each cat's history and socialization rather than a breed profile, so spend time with a cat before you decide. Mixed ancestry also tends to mean broad genetic diversity and fewer inherited problems.