In the summer of 2017, soon after starting a new job, Ariel Brandt Lautman took her two young children to Denver to visit her mother. This wasn’t purely a social call. Her mother’s memory had been deteriorating for several years, and Ms. Brandt Lautman, who lives in Silver Spring, Md., needed to plan for her care.

Ms. Brandt Lautman was 35 at the time, considerably younger than the typical caregiver. Each day was a juggling act. She worked from sunrise to 2 p.m., taking a break to drive her 5-year-old son and 3-year-old daughter to camp. In the afternoons, she took her mother to doctors, including one who diagnosed early-onset Alzheimer’s disease. A lawyer drew up papers that gave Ms. Brandt Lautman the authority to manage her mother’s finances and to make decisions regarding her health care.

“I think the hardest part was realizing I wouldn’t get to have an adult relationship with my mom,” Ms. Brandt Lautman said. “She would never really get to know my kids, to see me as a mother.” Her mother, Janet Brandt, who is divorced and now 68, was living with her boyfriend, but Ms. Brandt Lautman did not believe she could depend on him to watch over her mother for the long term.

The summer visit was one of several trips to Denver. When she was home, Ms. Brandt Lautman dealt with insurance companies, filed paperwork and coordinated her mother’s medical visits with relatives in Denver. She turned to Jewish Family Service of Colorado for a care manager, who checked in on Ms. Brandt regularly.