There is far too much debt in circulation that cannot be serviced if interest rates rose dramatically and borrowers had to refinance at higher rates.

Examples: the lines run up an exterior wall, they run through an uninsulated area of the basememt/crawlspace, there is a crack or opening in the wall that is next to a line, etc.Make sure to keep the sink base cabinet doors open to allow warmer air to circulate there so hopefully the faucet won't freeze and cause even more damage.You should call another plumbing service provider to see if you can get work done sooner. 

Too many dollars circulating in the market.2.

Keeping cabinet doors open during cold snaps helps warm air circulate around the pipes under sinks. 

As this money circulates, it's going to find its way into markets and get spent.

.-- Maybe it's an air circulation problem, ask the renter to put a small 9" fan (like a Vornado) on the floor in the doorway (pointed up at a 45% angle) in the bedroom.

@Nathan Nolan have you created a site plan that shows phased development, designed ingress/egress, internal circulation, description, cost and placement of wet and dry utilities?

From my experience, you can find off-market properties by:(1) creating relationships with realtors to see their pocket-listings (listings that they get and they only circulate to their network, and not advertised publicly)(2) creating relationships with wholesalers and getting on their buyers' lists(3) networking with other investors, who may have a property that they want to sell privately(4) finding the sellers yourself by various methods (knocking on doors, sending out letters to owners, reaching out to for-sale-by-owners, bandit signs, etc, etc)

The same month 40 million people filed for unemployment, Bezos gained 48 million in wealth the and became a trillionaire....Just food for thought as the article is written prior to all the extra currency printed (27% of money printed in circulation was done so I. 2020), and poured back into the stock market and into real estate.

having more comments:- if US gov is fourth world country and by doing unlimited printing, for sure hyperinflation already occurred and that currency is cut by half- but since 4-5 G4 banks is also expanding their balance sheet, so everybody increasing their circulated money supply regardless - since most country especially Asia is relying upon to export to US and Europe consumer, these money printing doesn't matter - the real threat is if Dollar is replaced with another currency such as digital yuan, now that would become a big problem, but wouldn't happen soon because other country doesn't want to rely upon China.