I wouldn't even think about making the extra payments, especially because you're looking to invest in more real estate based on your profile.  3.625% may be the cheapest money you'll ever get and with the house hack, it seems like most, if not all, of your expenses are covered and your housing costs are pretty cheap. 

@Adam DrummondAdam, your profile tells me you've been in the business for a bit, but still, word to the wise -- respirator with organic vapor cartridges is a must when working with oil-based poly.

Take a look here:  https://www.biggerpockets.com/perks/proYou can access them at any time by visiting BiggerPockets, hovering over your profile image and selecting "Member Perks" from the menu.If you are not a Pro member, you will be able to view but not access Pro Perks.IF you want to take advantage of the Pro Perks...because in a LOT of cases, the Pro Perk is worth MORE than a Pro membership...we have an offer for you!

With the Open Window Project and some other revitalization buzz going on, you can see rehabbed properties as well as population profile shift happening. 

That's me in my profile pic looking out toward the actual site of this battle.If being laughed at had stopped Lincoln's great act of conscience, the evil of slavery would probably have continued for years in the USA. if it had stopped Washington, Americans would be living in a kingdom, not a republic admired around the world for its stability in change of administrations.

So when i go back to the properties profile i can easily see which tenant is renting out the unit, who the property manager is, and which loan is on that property.....I currently have 5 rentals, so once i figure out what info i SHOULD be tracking on my units myself then i can keep adding it tell its perfect..

You should really take the time and effort to spruce up your profile so you aren't just some empty profile here on BP asking all these questions.

I would also suggest filling out your bigger pockets profile and starting to interact within the community.

My contact information is in my profile.

I am a big fan of this "value add" investing strategy, but everyone has a different risk profile.