And people cheered it, until.....

The other day I started the thread Why do people Buy Property in California? 

Maybe, but so far the reports are about neighborhoods where people have real money.

I know BiggerPockets already has a number of great calculators, but is there anything niche that people are interested in?

We have numerous who have their payments set up to auto-pay.

Not only will lenders be effected, but borrower credit, business loans, inventory, and auto credit will suffer when those effected have to relocate, find long term replacement housing and their livelihoods and income are destroyed.

all materials, all labor costs to others, Not you, utilities, interest payments, permits, licenses, auto/truck expenses, tools needed are all deductable. 

Our records show that your subscription is set to auto-renew, and no action is needed from you to maintain your listing tenure.

I was told that some commercial insurance companies are able to provide umbrella policies without auto policy and primary residence.

Some people need 2% above the borrowing cost (8% cost of hELOC you gotta then make 10% + etc) and others will want to double their cost of capital or 200% so it depends.Everyone's going to give you their anecdotal experience or what their preferences are so its good to hear it all and determine your own.