All of these assets are paid off.

They paid their portion of the rent.I have found a lot of investors bring their personal or political feelings into the investing conversation. 

The rental should be paid off in about 3 years.

Quote from @Rachel Jane: First post, no idea what I’m doing, lolMy grandfather passed away and left me his condo, which is fully paid off (and located in a seniors residence) It’s worth approx $500,000 (CAD).

Depending on the loan product, you may be able to exclude business debt once the business has paid the debt directly for 12 months.The income and losses related to the operation of the entity will affect the income side of your DTI (like Jay explained) if you own 25% or more of the entity.

And does the person doing the labor get paid or only the materials paid for by the partnership?

.: I haven't passed this past legal review so for what its worth: Part of my standard requirements for everyone include income is at least 3X rent, minimum credit score, say 640, Clean record and no evictions as well as deposit is paid in full at signing of lease and 1st month rent is paid in full prior to handing over the keys.

Is it best to just throw cash flow at the loan untill the principal is paid off (current cash flow between the two properties after interest and all expenses are paid plus vacancy rate = about $250 left monthly) refinance at renewal to pay it back in full? 

I don't see a scenario that you'd be paying their agent - There are 4 ways your buyer's agent gets paid (at least here in TX):  1.

We paid $20k for a new system but it was a carrier infinity system and included a 5 ton condensor etc. we are also in washington dc area so it will be a lot more here than other places.