The store had about 20 first division winning Lotto tickets in its history.
"We just roll them out - it's incredible," she said.
Ms Sands believed the wins could have come from the good energy they have in the shop.
"There is a really good energy around here at the moment. You can't expect you are going to get a winner but when you do, it's just wow. I always get a text from one of my friends or customers on a Sunday and they will say, 'you have done it again'."
Even the first owner of the store still came to buy his Lotto ticket here, she said.
Ms Sands said because her partner, Tom Walch, was born and bred in Greerton the shop had a great community feel to it.
Overall, Bayfair Lotto sold the most winning tickets across all divisions during 2015. The store sold more than 43,000 winning tickets worth more than $750,000.