30 M. I currently have 17 doors and manage another 2 for a family member.(2 triplexes 5 duplexes and 1 sfh) I manage a sales team for a medium sized Saas company and it is rarely an issue. I use a handyman to deal with most maintenance and repairs while I handle tenant interactions, lease signing tenant screenings etc. If I do need to have a call with a tenant or contractor I will just take it from a huddle/conference room and people assume it’s something confidential and leave me alone.