It's best that when the contractor arrives at the site, the materials are there already so they can get right to work.Then I pay the contractor as the job moves along.

Not only is every order on one website but you get emails on which orders arrive what day and an email when they arrive.

Kitchen arriving in 21 days.

What's the process & requirements (e.g. copy of lease agreement) for getting one and would the MTR tenant need to arrive early enough on check-in day to get to the municipal building that probably closes at 4 or 5 PM?

There SOW would usually be - 'I want a remodel done on the kitchen and bath, and add a new bedroom on the left side of the house'...Then I would add items that only a GC would know about or notice, like needing new headers for the openings they want, the elec panel being undersized, or the roof being suspect, etc...Together we would then arrive at a comprehensive SOW.Yes, that is much better scenario.

Recently, I've realized that it helps me (and my guests) to re-confirm details of their booking before they arrive (so there are no surprises such as undisclosed dogs or extra persons added).To answer your question on how to see how others have reviewed you as a guest, in Airbnb, you'll find it under your Account, then at the top of the page, select Go to Profile.

After arrival they're disappointed to find it's not a private bedroom, which leads to disgruntled guests that search for way to get a refund and leave bad reviews.

If one were to look at the list of portfolio properties presented on various syndicator websites and think that the syndicator listing them was the one that found, secured, purchased and asset managed all the listed properties, then one might arrive at an inaccurate conclusion for numerous syndicators.

Yes it costs money for the coaching, but the typical investor would take decades of trial and error of other investing techniques and would probably never arrive a systematic way of approaching investing for cashflow as is created with the income snowball. 

That said, my last Booking.com guest a couple of weeks ago was a bit difficult pre-arrival but ended up being a great guest and left a 10 star review (no comments though).