Is this really retirement though? Or just using your retirement assets to fund a career change to apartment management?
You're definitely not managing the property in this scenario; part of the operating expense is hiring professional managers. REITs and other institutional investors own and operate properties like this from a distance all the time. EDIT: I should mention that I own several smaller properties in another state that are managed and I spend maybe an hour a month on them. I'd spend more on larger properties like this, but…
A 'day in the life' of what kind of issues you run into with those properties would be fascinating (to me anyway).