I wouldn’t say it’s am absolute cause to reject. But isn’t common wisdom to check out her mother and see what she looks like, how she acts, and treats the father? If you cant stand her mom, beware. They often turn into her. Like i am turning into my dad, not a carbon copy,; but in certain ways. Other issues also impact. It’s not an auto disqualifier but it’s an important data point.
Data points like that probably account for the success of many arranged marriages.
