No the employer will either raise the price of the goods and services they are selling (other busisness then follow suit) negating the wage increase as a whole, or in a lot of cases that I have seen... the employers lays off 2 employees and has one do the work of two people or they outsource the work entirely.  

You would lucky to get 1% on a investment property, unless you purchased the house off market from a highly motivated seller at a huge discount.In past I held a townhome for 5 years, the cash flow was negligible but not negative - was just paying enough for PITI but I cashed in the appreciation last year.

In 2018 that number for San Francisco may flat line or go negative, we all know what that means...This all comes back to the Bay Area's two main housing issues: Low Inventory and Affordability.

Markets without the possibility of making these negative bets will be inefficient.

Threatening a tenant with a negative future recommendation? 

If you buy a 3 family and rent out two of the units, you may either be cash flow negative or break even at best.  

The only possible negative is if you get carried away and add too many AU's on a given card or take them off and put new ones on too quickly, the issuer could warn you or even close the card account.  

It's only negative if you're offering a bad product or dishonest service.

I care more about potential appreciation over cash flow but I'd never buy a property that risks negative cash flow. 

A $2000 cash flow can quickly become negative when all the hidden repair costs and problem tenants come to light.