Essentially leveraging a space in your primary home as a rental that produces enough income to cover your living expenses. Duplexes are most commonly used in House Hacking techniques, but I’m not sure where historic century old homes fall in terms of commonality, although rest assured we’ll use that heavily when it comes time to market it as a rental.
To put it simply, it’s all in the name. For many couples, starting a family is not only scary and life changing, but it’s extremely costly. In fact, according to a survey done by NY Times, the number one reason people don’t want to have kids is because “child care is too expensive”.