Morrie’s Discount Ho’s

Why go to a Jewish singles event when you can just call Morrie? 

He’s got a wide selection no other pimpowitz can offer. Plus, he’s open on Shabbas.  Apparently, he employs a shtar mechira ( a halachic loophole that, in this case, allows Morrie to technically sell his discount ho’s to a non-Jew (for one day only), thus allowing the business to stay open on Saturday, while not breaking the 4th commandment). 

But is his business kosh?