Would like a cash out refi which in this case I see pulling my down payment and a little extra out of the deal. 

I forgot to mention this: The plan would be to use the Heloc, cash out refi and/or loc as the down payment for the mortgage that they offer.

You can wholesale and use the funds from your deals towards your house hack down payment.

. = $5510% MGT fee = $110Mortgage = $253, 20 year amortization @ 5% Taxes $116 per moInsurance $75 per mo total = $719 per mo2% rule = 2.20%Capex = 15%CoC = 33% (turn key, est rehab to be $1000-1500 - new appliances, needs a few new doors) , $2000 closing costs, $10,000 down payment) The duplex does only have 1 furnace and 1 water heaterMonthly cash flow = $381 Am I missing anything? 

And all other low down payment options are off the table.

I used a FHA loan with a 3.5% down payment, from my understanding I can only have one FHA loan until the other is paid off.

From what I can read in the tax code it seems possible with the homestead exemption here:This annual exemption is available for “residential property that is occupied by its owner or owners as his or their principal dwelling place, or that is a leasehold interest on which a single family residence is situated, which is occupied as a residence by a person who has an ownership interest therein, legal or equitable or as a lessee, and on which the person is liable for the payment of property taxes

You will still need anywhere from 20-30% to get into any Canadian deal if you do not have the down payment nobody will give you anything.. 

I am about to be a first time buyer, don't have the money for a down payment but I have very good credit and the bank has agreed to finance me 100%.

If the water gets shut off due to non-payment they will not turn it back on until it is paid by the owner of the property & per the landlord tenant law you have to have water or you are not keeping it.