@Barbara G.
In my opinion it is very different than a traditional(albeit, long) flip.
As a few people have alluded to, flips have(or should have) a timeline, budget, and multiple exit strategies established BEFORE the project starts. And, the ARV SHOULD NOT obtained from a Zillow "Zestimate." These are often very inaccurate, especially when considering multi-family properties, and should not take the place of generating "real" comps and thoroughly understanding the details of other properties in the area.
Most flips end with a liquidation of some kind, such as cash out refinance or selling for profit. I gather from your comments that you intend to hold this property, so that "appreciation"(used loosely) won't be realized in a sale price and a 70% refinance (assuming your ARV is close to accurate) won't even get your whole down payment back out of the deal, let alone repair costs.
Final thought: If you have to include tax savings and loan pay-down, and exclude PM expenses and reserves to make the numbers look better, it's too thin.