I have reached out a Liberty Tax, H&R Block, a local account to help me understand how this return should be completed.

I understand that realtor commission can be used, but I haven't been able to get an answer about MLO commission and if that can be used?

Understand what forms are needed and when, don't be late filing them, and you can avoid the need for a specifically trained solo 401K expert CPA. 

From my understanding, the seller finance laws are quite different in Canada vs the US. 

If I am understanding the situation, you took at a 12 month loan and it is now due and the lender is foreclosing (I do not understand the six month comment).Here is the reality, getting a lawyer and spending $ to delay a foreclosure is only going to cost you more $ as the lender will also have legal costs that get added to the loan and you will have legal costs.Your options are refinance or file bankruptcy.

Trying to understand the order of operations to do this: detach doors, sand, prime, repaint boxes.

Go take a drive through and you'll understand.

You need to get your own insurance quote, understand what YOUR tax bill will be (will the assessor revalue the property to purchase price right away?)

I really go the extra mile to help out of state investors to understand our large metro market, and then close on a property successfully no matter where they are. 

It is important for investors to understand that each class of property represents a different level of risk and reward.