There are tax advantages for 2 years, but the mortgage obligation is one year. 

A plaintiff may always attempt to pierce the corporate veil by holding you personally responsible by theories as negligence or gross negligence.

Engelo Rumora, you can get up to 8% with Corporate Bonds and 12% with Covered Call ETF's. 

I would just stop going there instead trying to track down the owners and analyzing their corporate structure.  

Understand Obligations.

Is there a comparable service that charges a reasonable flat fee for sending the letters to the prior tenants, and then reporting the unpaid obligations to the agencies? 

Even if you manage to be the first person in history to maintain the corporate veil of a tiny corporation.

If there's a fire in one of your properties and a tenant is hurt, they can sue your LLC but so long as you haven't done anything personally to pierce the corporate shield, it's much more difficult for them to sue you personally. 

Are there various strategies/corporate structures that can be employed to minimize the tax obligation to Canada when investing in the states?

Anyone who does that, not just a wholesaler, should be dealt with by gov which is obliged to enforce the laws on the books.3.