I'd also prefer everything to be integrated together but if having separate individual tools that specialize in their own categories will yield better results, I'll sacrifice convenience for performance.

Have you looked at products like Nest that will also integrate with lighting, wifi, etc?

This keeps the integrity of the 1031 intact and still gives you the cash to do what you want.

If you're someone who needs to be fed leads by your brokerage KW won't be for you, although you could consider joining a team within KW...... hopefully you have the drive, tenacity, integrity and win-win outcome orientation to be a successful agent!

Can you really integrate the calendars between them so as to avoid double-booking?

NETWORK NETWORK NETWORK (personal side note on this one... have integrity, honor your word and do what you say you are going to do) 

What "due diligence" should we perform to confirm the integrity of the Lender?

Integrity is huge - doing what's bets and not just trying to get them to close on a deal and make the numbers sound good. 

If you have too many cracks and holes in the walls, the building inspector will tell you to gut the house, because the integrity of the wall has been compromised.

I have kissed a lot of frogs to find the right property manager with the level of integrity and professional standards I expect.