Is there a way to have a Goy bid on a house for you, if the auction is taking place on Shabbos? He would have to show up with a check of a significant amount in hand and actually buy it.
Where there is no choice one may do it. Sources: אף שהקנין חל בשבת - ולדעת רעק״א קנט ג״ז אסור - הרי במחלוקת שנוי. וי״א בדעת אדה״ז להיתר.…