I’m thinking that getting vetted by her father after the initial spark is the surest way. There’s more to trust in a man’s faith, and him looking after his daughter. Then you can propose after you’re comfortable with her family.
Nothing would reassure me more than a tough father that makes it difficult. She would then not see you as being in the bag, and be attracted by the uncertainty.
"Wow! He is brave enough to stand up to my scary dad, that's someone special!" Yes, I agree with your point.
When I was only in highschool, a junior, there was a sleek, tall and beautiful blonde who was the embodiment of a wet dream. And she was a sweet and very playful girl, who for some kinda reason liked me. At the local arcade, she would ride the motorcycle game, where you rode on a facsimile of a motorcycle and watched a screen. My friends and I nearly bit our knuckles as her perfect Georgia peach butt made that thing move! I still remember after all these years. She knew exactly what she was doing to us.
One day she invited me to visit her home sometime to study with her. I was sorely tempted, though in highschool I made a point to avoid romantic entanglements because I did not see the point. But for her I should have done it. I had heard the stories about her father, though I had never met him. A very big muscle bound ex-marine who supposedly breathed fire, and could look right through any young man who came by his place! Lol I should have been braver and gone. And her dad might have gauged me as being pretty harmless, which could have bothered her. Lol But I will never know. I hope she had a good life, she was fun and caring.