The most common reason for a high water bill is a toilet that constantly runs or flushes.

You will get people willing to share in high demand areas and you will see this in high rent areas but you are keeping up the common areas and it is a bit harder.

Common fees will include a set-up fee, a leasing fee for each turnover or a lease renewal fee, marking up maintenance, retaining late fees, and more.

Very common for most of today's gurus to utilize these types of subterranean creatures. 

The most common options used by investors seem to be an LLC or Umbrella Insurance. 

This is fairly common when people want anonymity.

One of the most common complaints I see on reviews is how the area, location, or house did not look like they thought it would or was promised.

That's a common phrase.Real estate investors can get more bang for their buck from their PMs when these folks "think like an investor."

The red flag for me was common sense.

I have not reviewed BAM's fees but it's likely based on their representation of UNDER 10% "skin in the game" that most of their "investment" is taken from fees deducted from the money gamblers place with them and counted as equity in the deal; this is a common practice in the syndication industry.