Additional Principal payment: Focus on one of the property or spread out on all?

[Sartaj G.]

Hi All,

I have a few properties with 30 year fixed mortgages in 6.5 - 6.875 % rate range which originated in the past 2 years and 2 properties with 15 year fixed mortgages in 2 - 3% range which were originated long time back with not a lot of principal left. I am currently paying additional principal ($4000-5000 per month) spread out to most of the properties but was wondering if it will be better to apply all of the additional payments to one of the house pay it off and then move to another house? Has someone done an analysis on this kind of scenario?

My long term objective is to pay off all of the houses over 8-10 years (before retiring from my W2 job). 

Thanks a lot in advance. 

[Patrick Roberts]

I would personally apply any extra principal to the loan with the highest rate. Up to you, though.