I often travel for months at a time. Leaving a house alone for that period of time is a major issue. This is especially true because I live on the East coast and most of my travel is in the Western US. Even when living in the house, we have had all sorts of issues arise including broken pipes, malfunction of heating or AC systems, a leak in the roof, a flooded basement and more.
Fortunately we found a solution. We bought a large house, added a second kitchen and did some additional remodeling. We share the house with my daughter and her family.