Legality of Incalls vs Outcalls
The reason outcalls with an independent escort (a woman visiting you in your own home) are not a problem is because prostitution (exchanging sexual services for money) is not illegal in Canada. There are a number of activities related to prostitution that are illegal, and it is those activities that pose a risk to engaging in incalls or other activities.
For example, communication for the purposes of prostitution in public is illegal, therefore soliciting or negotiating with a street-walker is illegal (in addition to stupid) (btw, for the purposes of this section of the Criminal Code, the inside of your car is a public space). Also, operating, being a resident of, or being found in, a "common bawdy house" (ie brothel) is illegal - that is what makes incalls illegal. Finally, living off the avails of prostitution is illegal - that is what makes agencies, regardless of whether they do incalls or outcalls illegal, they are profiting from prostitution (for the purposes of this section, it is not illegal for an independent woman to profit from her own activities, it is illegal for another party (ie the agencie's mgmt) to profit from the act of prostitution).
For an independent escort there is no need to engage in the "paying for time only" charade...there is no crime in providing sexual services in exchange for money.
What may become an issue is whether the internet is a "public space". Therefore, if a woman is advertising on the internet, is she communicating for the purposes of prostitution in a public space"?
From a practical perspective I agree with Calloway's comments re "discrete" incalls. I am not aware of any instances locally where the police raided an incall operating in a private residence.
However, there have been raids of mps. So if you are in an mp that has become notorious for allowing "high mileage" you might want to consider whether you want to run the risk of being accused of being "found in" a common bawdy house, when the police kick down the doors.
Also, several years ago they did target several agencies, presumably using the living off the avails provisions of the Criminal Code.
I stand to be corrected, and welcome any comments with an opposing point of view, but my impression has been that in this community, and others like London, the police tend to get most interested in this industry when they believe they can link a particular agency or mp to organized crime (ie bikers).