I used to leave a bottle of decent champagne when a guest mentioned they were visiting for a special occasion like an anniversary or something.

But in my neophyte view, the answer to your question is possession of something that there is higher demand for than there is supply.  

Depending on what you find available and how many possessions you have but it’s likely possible to find a decent sized duplex to purchase.

If the seller is still on the property after you close (you negotiated delayed possession), I wouldn't be opposed to doing exterior work (roof, landscaping, concrete, etc.), but I wouldn't do any interior work.

I just need to know is there any type of private lenders who specialize in much larger transactions with having windows on time of finish which I estimated at around 2 years.

Connecting with local agents who specialize in investment properties can offer valuable insights into the market's current state and potential opportunities.Networking with Local Investors. 

Apparently double taxation is one of the biggest hurdles for cross border investing.I would really appreciate some sound advice about this, and if anyone knows someone who specializes in US-CAN cross border tax laws, please let me know.A big big thanks in advance.

We specialize in helping out-of-state investors and would love to help you build a successful portfolio.

On the positive side, at least in Massachusetts, there is a special paragraph of the law that applies to rooming houses / lodging houses, which enables just 7-days’ notice to start an eviction for cause of an offending tenant when they are doing something that is creating significant issues for their neighboring tenants (or the LL).

I haven't conducted a variance myself but I often hear about investors delegating that work to a specialized attorney familiar with the scope of work.