Seeking Full-time Senior Care Provider In Arlington

We need a senior care provider with experience for my mother who is 93, in very good physical health, but has slight dementia. Our main concern is help with memory and organization. Other concerns include very light house keeping - she has a house cleaner, staying physically active - she attends exercise classes, uses equipment at home, walks regularly, food shopping and cooking with her, transportation for errands, social engagements, etc. - using her car. and of course companionship. My mother is an interesting woman who speaks several languages, lived in different countries, and traveled a lot. She has been retired for 30 years and spent most of those years volunteering to help others. We are currently looking for part time - flexible schedule - to build a relationship that over time can lead to a permanent live-in situation.