Definitely can 20% down if the rent covers the mortgage 

Taking cash out by way of a new mortgage is not a taxable event.  

If you want to become rich through real estate investing, stop paying off your mortgages early.

But he can enforce the lease strictly to get a "just" cause, should it exist.- Late rent: you give a 14 day notice to pay or vacate and they fail fail to comply.

Kattie Ninkovik with Keller Williams out of New Berlin, WI was a great agent and Kevin from Stampfli Mortgage out of Madison, WI went way above and beyond as well as incredible communication throughout the entire experience.

Im a first time home buyer, no existing debt, self employed, bring in average $4k monthly, looking for a conventional fixed rate loan in PHX or surrounding areas.

The units without mortgages typically net $10-12k annually and the units with mortgages net about 1/2 that.

My first question would be, would be (mortgage-rent) be lower than the current rent you are paying?

Partnered with another LLC not on mortgage.

If you offered them enough to cover their mortgage and closing costs, I am sure they would feel relief.