How is it installed? Please post pics of the underside of the sink showing how it’s attached/supported. Are you DIY?

It is installed under mount. It looks like there are brackets + a wooden frame for extra support.

Disconnect the plumbing and basket, run a bar clamp through a 2x4 that spans the top and through the drain and leave it loose. Remove and/or loosen any framing/shims holding the sink in place. Drive a scraper between the sink flange and stone bottom. When you can slide the scraper all the way around, drive the sink out the front.

Thank you @Joseph Corlette! Would the front cabinetry need to come out? Any risk of damaging countertops since there is a seam? And who might I be looking for to do this job- cabinetry, plumber, countertop contractors? I appreciate the guidance!

Since that is a full apron sink, the cabinet front will not have to be removed. Your risk of damaging your countertops is very low. Even if you did, a stone with that much movement will repair easily and inconspicuously.

Unfortunately, your granite guy is going to tell you to get a plumber, and your plumber is going to tell you to get a granite guy. That's why I'm so busy; I'm both.

The trick here is lowering risk. You've got to make the risk so low that someone is interested in making money on your job without getting a shrieking internet review that they ruined your stone. You must appear to be a reasonable customer who isn't afraid to sign a waiver and has some money. Don't even think about getting three bids. The guy you want to do this doesn't think he can charge enough to make it worthwhile. You must disabuse him of that notion.

Once the sink is pulled, you may not have too much trouble getting a plumber to take on the job as it's pretty straightforward. If you're going with another heavy sink, I'd recommend removing the shelf and installing a Pete's Sink Mount Kit; $300.00.

Budget 2K for this job, sink not included, if you don't change the cutout. Add another thousand if you do.

Thank you @JosephCoelette! So it looks like the way the sink is mounted inside that the cabinetry in front of it would get in the way. It seems a little lower than the horizontal frame piece that sits right below the apron. Is that something where a cabinetry person would just kind of tap it out of place and be able to put back in without too much trouble? It seems the sink would be able to come straight out the front of the cabinetry is removed. Would the granite be disturbed in process? Photos attempting to capture how it’s secured, the cabinet framing, and the part of the sink (it has tabs almost) that stick out lower than the outer cabinet framing).

Thanks for any guidance you might have! Sounds like a cabinet person would be our best bet? We had a counter guy come and he said they would lift the counters to remove sink. 2 men holding the counters, and one man taking out the sink and putting a new one in... seems like that may end in disaster (they had a disclaimer saying things may break and customer might not be happy...)

Do not let those inexperienced granite people fool with your tops please. You don't pull tops to pull sinks.

You can tap that cabinet front off easily enough. Set a wood block behind the cabinet front and smack it hard with a hammer. Starting at the bottom, tap your way around and it will come off. Take the front and the sink out simultaneously. You'll have to put the front back on and the sink back in together.