Boucherie Lawrence is an homage back to old style butcher shops which were a common fabric of neighbourhood life 20-50 years ago. Nowadays these places (although some exist) have become more specialized and need to charge more money. This is due to the advent of mass grocery and Costco have taken over the lions share of the meat business.
Offerings here are fresh cut (aged) meat. Loads of local bottled and canned products. A small selection of fresh dairy products and what I come for the cured saucisson. Last year I spent the month of June in France and developed a semi-addiction to cured saucisson. I'm not proud of it (hence my mom and doctor warn in moderation) but this is the best offering I have found in Quebec. Pork shop (available at your local IGA) does a fine version however it's just the bit more delicious here at Lawrence.
Also purchased are bottles of St Leon maple syrup. $25 a big bottle is a bit steep but it makes a wonderful gift or delicious in the morning on your pancakes or toast.
Being in the heart of the Plateau then can cater to those who are willing to pay a bit more.
I believe the meat shop is connected to Lawrence restaurant a few doors down which does a dandy brunch.