I don’t have anything rare/super risky, mostly broad market index funds.

I'll answer a little broadly since others may look at this later, and I will assume you've already filed form 2553 and obtained your S-election. 

p16  "Salzano used this money, much of which was traceable to Fund investors, for an array of lavish personal expenses, including erectile dysfunction medications, expensive dinners, extravagant birthday parties, and payments to Individual-4 (Salzano’s wife), Individual-5 (with whom Salzano had a romantic relationship), and Individual-7 (Salzano’s ex-wife), none of whom worked at NRIA in any capacity."

This might be pointing out the obvious, but MTRs vary so broadly that it seems worth pointing out.

Guess who the E & O carrier's claims department goes after for reimbursement based on the broad indemnity language quoted in this chain?

It’s a very broad question that encompasses dimensions of risk and risk-adjusted returns. 

@Robert RixerHousing shortage is a broad topic but as far as shortage of homes for sale goes... the Fed holding rates so low for so long resulted in 3% mortgages...

E-commerce offers the advantage of reaching a broad audience and reducing operating costs compared to traditional brick-and-mortar stores.

For marketing, best practices are:+listed it on two sites, one of which is Airbnb and the other is a long-term unfurnished site like Zillow, Turbo Tenant or Avail (people convert well on those sites)+Write the listing broad and avoid any preference for traveling nurses, medical professionals, insurance folks, etc.

In order to make sure you're optimizing your tax advantages and adhering to all applicable requirements, even while I can offer broad advise, I suggest speaking with a tax professional or accountant who is knowledgeable with real estate taxation.