We also use a trust structure to help protect the transaction when needed.I do agree with you that having the dollars to pay off the mortgage if something occurs is best practice. 

See if you can make dollars via conventional sale3.

You might want to do a comparison of simply selling and paying the tax and then investing post tax dollars into whatever equities you want.

Every problem has a dollar value to fix. 

The problem to the solutions of having a window AC or portable on standby is that if your portfolio is large you will have to have $10s of thousands of dollars of ACs for "just in case" moments.

Suggesting how to structure the sale of your property to minimize taxes is also tax planning, and it can produce tens of thousands of dollars in tax savings.

My tenants were late and a 50 dollar fee assessed and I was surprised when the 50 fee was kept by the management company.

Will you hit the pavement and find them yourself through marketing, driving for dollars, cold calling?

And completely agree a dollar saved on expenses is worth the same as a dollar gained in revenue, but the expense side is often overlooked.

I am looking for a basic CRM to help me keep track of the properties that I find while driving for dollars.