Metro Atlanta, generally speaking, respective markets 30 to 45 minutes from the City, will be tight on cash flow unless you implement a creative investment strategy, such as short-term rentals, medium-term rentals, or rent-by-the-room properties, or allocate at least 30% to 35% towards your downpayment if you intend to hold the property as a long-term rental. 

Any advice would be much appreciated!

If you haven't checked the market for homes with "inlaw suites" or whatever your market equivalent is that can be a way to get it done as well. 

For your first question: you can definitely be successful either way.

If I had to leave a takeaway from this post before getting too far in it would be that whatever goals are had you have, we have these goals for a reason and typically it does not go exactly as planned but even if it doesn't go as planned, we can pick up where we left off and give it a fresh start.

What did they say it would be?   

She sent me a letter from Commercial Property Advisors, Peter Harris, which stated she had approval for funds sufficient to cover the purchase price and below it listed a Wells Fargo business account showing funds in excess of the purchase price.

2) How well do you understand the differences between Class A, B & C?

One thing to think about are the tax implications of being a Canadian paying US taxes.

Quote from @Chris Pontello: Hi Chris,Correct me if I'm wrong as I'm still learning creative financing solutions, but paying them some money would be if I could take over the loan.