Several universities and hospitals bringing in jobs, a downtown area that’s being revitalized, and a decent array of shopping and fast food choices.

Some are doing the 50% thing as you indicated, some subtract withdrawals, some use a CPA letter (that CPAs don't like to write, most will outright refuse).Currently, market-wide, fewer than 50% of preapproved buyers using one of these loan programs actually make it to the closing table.

This is because the judges and regulations can vary widely.

If the Fed lowers rates, as widely anticipated, in 3 times 2024, by 25 bps each, perhaps with one 50 bps decrease if we are being optimistic, the federal funds rate will drop to 4.3%-4.6%. 

The main difference though is that there is not a wide variety of loan products available for investors compared to mainland USA but if one is comfortable putting 20-25% down has strong credit  verifiable income and is ok financing 1-4 unit properties most lenders here can accommodate.

Meaning they can say no to all of your applicants if the park decides they want to get rid of investors and take the operation of rentals in house.We buy double wides on land, no land rent.  

I agree you should stay in your lane but I also believe that you should stretch your lane as wide as you safely can.  

Realtor.ca is the basic canada wide mls website

Nothing is safe in REI if you don't have the knowledge to understand the deal or become overtrusting of a wide-scale source that promises you solid returns.

I'm searching for a wide range of information sources, but I'm still struggling to fully comprehend how to identify a suitable market and a specific pocket within that market.