If its much more sturdy with real wood, all-metal parts, etc, I'd strongly consider it. 

I think instances like this is exactly what @Jim K. and other's keep calling out, the false notion of iron clad security from such entities.

Considerations I've found so far include: various layers of outdated insulation (mid-80's fiberglass stuff laid over old vermiculite), 1x2's nailed together to create 2x4's (but still relatively sound structure for the age), asbestos siding (needs a powerwashing and I've found it's totally OK, until it's time to rip it off or demoed), 1" galvanized metal water main is very old, electrical wiring that is visible is a hodge podge mess, there's an old gas pump on the site (not sure if tanks are still buried), real bad mold in bathroom, at least 3 layers to the foundation (that looks solid still), ugly old wallpaper, cigarette smoke smell, kitchen is a complete gut and remodel, nearly the whole home is.  

@Kewei Qu Regarding windows, the options are typically:1) Board them up with plywood2) Secure with metal screens http://www.dawgsinc.com/3) Install a LOUD alarm 

(which reminds me that a voicemail today informed me my roofing metal is ready to pick up) So yes, we're guilty of working "in" the business instead of "on" the business but we do all that too as we self manage, do our own taxes and whatnot.

You can encapsulate the paint and isolate with metal winterizing copper.

They can show you how to use a metal detector. 

Metal buildings will be easiest and most cost effective but you need to research your market to make sure you build the right configuration for the potential use and prospective tenant.

And, this involves everything you care about:  stocks, real-estate, business dev, commodities (oil, precious metals, minerals, etc), estate planning, asset protection.  

In addition to the extra layer of drywall and sound insulation there are vibration clips that are installed under the joists and then a metal furring channel is installed running the length of the ceiling.