The seller has agreed to set up an escrow account to withhold funds to cover the lost rent moving forward.

I will go back and relook the projections, but initially the projections are providing the investors a 9.1% Cash on Cash, 18% Average Annual Return, and a 15% IRR. 

Account Closed did one and wrote about it here on BP.

Note I assumed 146k note on the refi to take into account that you will probably roll the closing costs into the refi.  

Account Closed yes they do other wise it could trigger a "due on sale" out lined in the mortgage note.

Parking the money in a savings account will produce a negligible return.

I'm looking for an accountant that could navigate my taxes for me.  

Fear-of-missing-out caused a lot of bad decisions that never took risk into account.

I also have an account with Essa but haven't tried their lending.

I reckon 3-5 years is too short a time frame to GUARANTEE continued appreciation that gets you cash flow AND a profit on sale, after taking all expenses into account - if you're paying market value, in an already hot market.