It appears you will have a simple filing a lot of CPA's may turn you down and many will take anybody that walks in the door.   

Regarding the elevator, you will not be able to rent to multiple people who can't walk up that many stairs and you might get negative reviews about people having to carry their luggage.

I dare you to go to your local REIA and ask the top investor to walk you through a deal and let you listen in on a call..

I have a fund I would be more than happy to walk you through our Pros and Cons.

This significantly lowers the cost per door and improves your return on investment.Scalability: A three-story walk-up design allows you to maximize your build cost and land use, just like most professional apartment developers do.Control with New Construction: Starting with a new build ensures fewer risks, as you’ll have control over the property’s condition and avoid surprises from existing structures.Pro Tip: If you do go with an existing property, make sure to thoroughly vet the deal to avoid hidden costs and issues.For first-time investors, multifamily new construction is often the best way to scale quickly, reduce costs per unit, and build a sustainable rental portfolio.

Some HIs will walk the property with you for a steep discount and tell you what they see to inform your offer.

I would find 2-3 local property managers to interview and do walk-throughs with. 

My property is in a depressed area walking distance to the largest employer in the area which is a shipyard. 

My recommendations is to call one of their investor relations specialist and walk through this with them. 

@Rud SevIt's really your CPA's job to walk you through your tax return.