I'd bite the bullet (pun intended) and put them on, if I were you, but check with your insurance people, because some insurance policies won't allow you to have security bars, and those that do, say only on some windows and one door.  

It is very much like making that first jump off the diving board into a pool and using that as a springboard (pun intended!)

You already have a lot of tools in your toolbox....no pun intended.Now, you simply have to work on the other elements to progress your REI pursuit.Ok, now that you have taken your initial step, below are some quick links to get engaged. http://www.biggerpockets.com/startherehttp://www.biggerpockets.com/meethttps://www.biggerpockets.com/alertsHow to Use @Mentions on BiggerPocketshttps://www.biggerpockets.com/ruleshttps://www.biggerpockets.com/termshttps://www.biggerpockets.com/inviteshttps://www.biggerpockets.com/perkshttps://www.biggerpockets.com/forums/categoriesREI books suggested by BPershttp://www.biggerpockets.com/renewsblog/2013/04/14/best-real-estate-books/?

More and more companies are pushing the self showing lock box so there potential tenants can access the property virtually anytime (no pun intended there).

I liked Michael Quarles rebel answer... he's always pushing the envelope (pun intended).

Sorry couldn't resist the pun.

@Brandon Turner it's a good thing I love puns, otherwise I would have had an aneurysm!

Pun intended.P.S.

Jetted the crap out of it(pun intended) and up and running for the last 4 years.

I am operating on the other side of the pond (Scandinavia), but thought I'd take the plunge (pun intended) and give this question a shot as the principles of land purchase and development seem fairly universally applicable.A suburban part of town close to the neighborhood where I grew up is undergoing a municipal master plan that paves way for rezoning and dense city-like development of apartment buildings.