Every dollar you spend in cash or with a debit card is a wasted opportunity.

This last time, she paid the rent by the due date, however Apartments.com noted to me that they would debit the money out of my bank since the tenant requested it was a fraudulent transaction.   

I kept saving and learning, paid off my car and student loans (helped my DTI) so I could buy another house in 2020 using another conventional 5% down loan (this time I prepaid the PMI because it was half the price of making the payments). 

Debit card, free ATM nationwide, etc), no minimum balance and the highest interest rate I have found. 

You can lock down a cash flowing rental with the purchase price of 60-80k so assuming a 75k purchase price you'll bring 15k down as well as 2.5 for closing costs and 2.5k for prepaid taxes and insurance.

This is because discount points are prepaid interest, and you will lose that money if you refinance before the end of your loan term.However, if you are planning to keep the property for 10 years or more, you may save money by buying discount points.

In addition some lenders will permit a concession to be towards pre paid interest.

For example, a concrete company will provide a release right after the pour if pre/paid with smaller subs.

Debit/credit card/bank account 

While I love the idea of an applicant paying SmartMove directly, it may be more difficult for those of us with rentals in areas where lots of people have cash only (no debit cards or CC cards) nor do many of them even use the internet.