“…Despite increasing focus on in‐law relations (e.g., Kim, Zarit, Fingerman, & Han, ; Lee, Spitze, & Logan, ; Shih & Pyke, ), few studies have explicitly investigated relations with the parents of the partner across marital and cohabiting unions (Artis & Martinez, ; Daatland, ; Hogerbrugge & Dykstra, ). This research confirms that the family ties of cohabitors are weaker than among those married, although findings so far are mixed.…”