I am originally from the states and not sure if it's worth buying a property here (I am concerned about labor costs for maintenance) or should I do a house flip since there are some opportunities in Alberta (Calgary primarily).  

Also consider what your tenant base wants - some neighborhoods want high-end finishes, where others are only concerned with space and layout, and others need a combination of the 2.

I'd ask them which underwriting guidelines you didn't meet so you can see if it's a serious concern or if it's something you can address (you don't want that happening again!) 

My biggest concern would be their expectations of the state of the home.

Aside from this one concern (which may be nothing to be concerned about) I think she is a great realtor. 

My main concern is has anyone in the area changed their average rehab costs due to inflation of rehab materials?  

I am considering two options here: 1) Pay off the loans in full now. 2) Allow my money to continue earning interest in my high yield savings account until the moratorium ends, then pay them off in full.I have the following concern about waiting to pay: I expect my credit score will take a hit after I pay off the loans.

Two of the common areas of concern for HELOCs I see out there is the 10 year maturity date and the adjustable rate.

In other words, if the work was already done, should I be concerned? 

I’m only concerned about liability.