If you have more than 20% equity in the homes, you should be able to take out an interest-only line of credit against that additional equity, which basically sits in an account without accruing any interest until it's used.  

Now it's time for me to start looking at leveraging the equity that the rental property has accrued and leveraging that towards a second property! 

We require all our tenants to pay online through a portal (which has an automatic payment option), but often the small tenants are accruing late fees and or NSFs. 

My accountant confirms for me that any HELOC interest accrued when used towards a business expense is deductible. 

The outstanding balance is $396,000 that is accruing interest of 9.75% on a daily basis as it is in default.

A Tax Lien is where you pay the delinquent taxes which accrues interest based on state statute. 

If anything, investors under compensate for the costs that they will accrue.

Obviously you will accrue mortgage debt when you take the plunge into real estate investing but I view that differently than credit card, student loans, and car payments because those are not appreciating assets like real estate is :)

My few PM deals have been ~10% interest rate, I/0 that accrued to the end of the project. 

Note: This property was bought with a private note at 10% interest with monthly interest accruing around $1100/mo.