What is the appropriate amount of Umbrella coverage does one need to ensure adequate/robust (but not excessive) coverage? 

Use that money to to buy about 1.2-1.4MM in investment properties whether it be 3-4 SFH or a MFH (not familiar with the area), and use excess cash for some value add cosmetic work if available.

Excess traffic, the neighbors will complain about all the cars2.

What I choose to do with my "excess time" is give it back to others who are pursuing their own journey to financial independence.

And for heavy real estate investors, an important thing to note is the excess business losses.

I worry about the liability and also booking stays in excess of 28 days. 

You don't have excess capital to put into real estate deals. 

I have a dryer and washer from my recent purchase of a property. Outside of FB marketplace and Offer Up, what do others use to sell these types of appliances?

I’m managing a 5 unit building and my owner has asked if there is anything we can do to help with the excessive cost of water and trash.

We constantly work toward being ‘frugal’, we keep excess materials from past projects on hand, we are always on site with our projects to make sure work is getting done… All of these little things made it possible for us to pull off the purchase.