I live close to northern crown land within an hour or two drive, where grouse are abundant, I can shoot my limit, and so I get the attitude of some fortunate people posting opinions here, dismissing the grouse guiding service business idea.
But I think that northern attitude is somewhat smug and privileged for northerners - northerners have easy access to vast crown land landscapes of good to excellent grouse habitat and populations.
A major portion of my life was spent in southern Ontario in a sea of private land posted "no trespassing", posted agricultural land, urban sprawl, and estate residential and cottage country locking up vast areas of woodlands, wetlands, shorelines, and old fields. Unless you knew some private landowners with alot of land in woodlot, old field and wetlands, hunting within a day's drive of home, it was next to impossible. The few specks of public land reserves that allowed hunting were long since shot-out for grouse populations, and could be dangerously over-crowded with hunters, shooting towards each other when the last existing grouse in the tract flushed.
I wanted to go grouse hunting real bad, but it was like living in a prison cell for years, looking out at landscapes I could never access. Add to that a busy work life just starting out, and limited time to "just drive north" into areas I did not know, and required overnight stays due to the distances, adding to travel expense that at that time I could not afford, barely able to put gas in the car. And it was a little car, not a truck with good tires for backroads.
In southern Ontario there is a giant wall of cottage country private land, surrounding it before getting north into the Boreal Forest to the north. It can be very hard for a beginner to that landscape to access the separate blocks of public land within that private zone (and that was well before the online Crown Land Use Atlas revealed the land ownership opportunities).
I think the professional grouse guide for hunters (or wish-to-be new hunters) living in that southern densely developed private land landscape, is a great idea. Marketed and managed well, I predict it could be lucrative. The customer would have to be financially well off of course to afford the service, (guide fees, fuel, overnight stays in local hotels or tourist camps, etc).
When I lived down there, I could never have afforded such guided services. But there is alot of money down there and thousands of well-to-do people that would love to hunt grouse, and pay for it.
Especially the older folks, now physically not as spry, who retired from hunting years ago, but would like to get in a few more hunts before they become too old to walk around in the bush.
There are also many wealthier old guys living down south who love to would pay to take their grandkids on a northern guided grouse hunt, who's parents don't hunt or are too busy or not financially able to take their kids north to hunt. That's what grandparents are for, especially Grandpa. Grandpa wants to see his grandkids exposed to quality hunting experiences before he passes on, and he will pay for such a guided hunt if he is unable to scout the northern habitats himself. Maybe he will pass on his shotguns to the grandkids after some grouse hunts? My Grandpa did - he gave me his Browning 20 ga O/U.
The more people who get out to hunt, the better our future is for firearms ownership and freedom.
Best wishes for your business plans!
. That said, I understand where to find grouse and have hunted grouse and woodcock for years. 
