Some items to consider are accessible path of travel (gravel is not going to cut it), potential elevator, potential historical preservation involvement, and the biggest issue is if a business can garner enough clients to cover the cost and still make a living. 

You need to spend $10s of thousands if not $100s on drawings elevations civil engineers planners before you pay the plan submission fees to get in the door and they can say no or you need to make amendments that cost more $$$

@Angela Stevens The best thing to do is give the elevator pitch immediately when you talk to the broker.

@Cristian Aviles-Morales I don't really like sharing the nitty gritty but here's some short answers1. tenants moving in earlier than they should have caused occupational permit issues. work permits I didn't know I needed were required. some ahole competitor who lost the deal to me I'm pretty sure knocked down some electrical wiring to one of the buildings and mysteriously the day after an "anonymous" caller reported it to the city. some guy harassing my contractors while they were working which I'm pretty sure was the same guy who vandalized my wires.2. my elevator pitch to short term investors. would you rather generate .01% in a checking account or invest with me and get an annualized 8% back on your money. you're basically making 800 times more.

They are roughly 1,000 feet in elevation. 

There is no elevator, does the basement units classify as "ground floor units" ?

Originally posted by @Tom Gimer:Tom I have been approached numerous times on BP  and other things like Linkden and facebook by faux lenders I go ahead and let them  go through their elevator pitch what they do and those that really don't know what they don't know about the world of lending and finance is they provide things that we know are not germane but the person they are targeting gets impressed by those items..

TK, I am going to add this breakdown to my elevator pitch when discussing with new potential investors.

Contact Elevated Interior Design.

i've only hear of a fire curtain being used in commercial buildings (usually near elevators)