@David Lutz back of the napkin calculation would say $10k month rent with 5k for taxes, insurance, property taxes, maintenance and repairs plus cap ex and reserves which leaves 5k for principal and interest.

They have actually paid down extra principal every month.

After that, you'll need to start repaying both principal and interest, which could also affect your cash flow.However, the flexibility of a HELOC can be beneficial, especially if you plan to make strategic investments that generate higher returns in the short term.

So is managing them--we have never lost investor principal and don't plan to start now, and we will fight to the end of the earth to protect our investor's interests.

Melissa Bolling (principal) is a member here.I just bought a note where the escrow company was already in place as the servicing company.

Or, do I need to show some form of monthly principal only payment?

Because of the amortization schedule, the payments at the end are more principal than interest, so the savings aren't that much in the big scheme of things.

Buy the rock solid rental and get your appreciation, cash flow, depreciation, principal pay down, equity capture on a discounted by and forced appreciation gain for a well targeted rehab.  

I agree with Jon in principal.  

I would put the student loan on an automatic minimum payment plus some comfortable, but not too large, additional principal payment (if available) per month, then forget about it.