i completly agree with am yisroel chai, if you know the person has good middos and seems like their someone that you are interested in why not go for it try it! there are obviously negatives and positives abt. the situation but i strongly believe that as long as you feel it may be a good shidduch try, it may be an advantage that you know them from before rather than meeting up with a random stranger hoping there perfect for you and and that you’ll hopefuly fall in love with them.!!!!DEFINATLTY GIVE IT A TRY,
HATZLACHA