Laws and regulations and all.

Information provided thus far is correct.As a long time Ontario landlord the following is the rule.1) Both are on the lease, both are responsible for the rent as long as one resides in the premises.2) The lawyer is blowing smoke and in reality very few lawyers on Ontario are aware of the regulations.3) Only the landlord has the authority to initiate an eviction.4) until March rent is not paid you have no grounds to evict.5) Assuming rent is not paid you may choose to evict both tenants for non payment of rent.6) Cost to initiate an eviction is $170 and will be lost if the tenant is not evicted or pays rent owing.If you issue a N4 you will be releasing the tenant from all monies owed (rent damages etc) if they agree to both leave, and you get nothing except maybe your $170 back. 

Hmmm, you would also want to be really careful that you aren't out there 'originating mortgage loans' or doing something that requires a license, something regulated. 

I tell them  they only have to take that environment for a year (Owner occupancy requirement) and then move out of the neighbor(hood).

Assuming your state regulations are silent on the subject (death of a tenant) you charge/they pay what ever is required according to the lease.

CDSs are not traded on an exchange and there is no required reporting of transactions to a government agency.[6] During the 2007–2010 financial crisis the lack of transparency in this large market became a concern to regulators as it could pose a systemic risk.[7][8][9][10] In March 2010, the Depository Trust & Clearing Corporation (see Sources of Market Data) announced it would give regulators greater access to its credit default swaps database.[11]See https://en.wikipedia.org/wiki/Credit_default_swap#...

Likewise, people stuck in heavily regulated states don't really comprehend what it's like to live in a place that values personal freedom.I work with several investors that sold their properties in California and moved every single dime to Wyoming last year.

@Collette Douglas you're right, the education requirement regulations for a real estate salesperson's license do specify "classroom hours" explicitly.However you don't necessarily need to take them through RIAR (RI Association of Realtors), in case that's inconvenient for some reason.RI Division of Business Regulation maintains an extensive list of all approved licensing companies & courses - just search for "pre-". 

I'd rather have a vacancy for 6 mo. or more (especially in today's Tenant Friendly Environment) than put a bad potentially nonpaying tenant in a building.

Further, you may want to include that you'll get the unit professionally cleaned and/or have some additional rules and regulations of the building.