You are looking to create the biggest spread possible so shopping around for the best rate and terms should be a priority.

@Megan Paquet NelsonA good remindee why investors really need to stop price shopping on insurance and really shop based on coverage, a great agent, and actually read their policies so they know what their coverage is and isnt.

You chose a property manager without shopping around and comparing multiple professionals in the market.

This will narrow your shopping area then you can hunt for the deals. 

As realtor/investor who specializes in working with investors, I can be your one-stop shop here connecting you with home inspectors, general contractors, and property managers all of whom I know and trust.

Most enticing is it is located on a very well established street with a wall score of 92 - lots of restaurants, bars, shops and a park nearby.

I was turned down by all of the companies that are often mentioned here (Proper, Steadily, Foremost, American Modern) and many others. 

Im wondering if it would be better for me to wait until I have the money in my bank account for a down payment, or at least another paycheck in the account (paid monthly) before I start shopping around for pre-approval letters.

Let's not pretend software widgets are 20 thousand square foot shopping centers...

This metric was the liveability and affordability metric which I cant define very objectively as median income, family friendliness of a suburb, affordability, shopping & schools and distance to major business centres comes into play.