If you want to try an advanced statistical technique to improve your chances of increasing your response rate, research Design of Experiments (DOE), which is a multivariate method of testing many factors simultaneously.

As for something to work on, I would say at this point, my boldness.

I did see a post on here by an agent with some statistics about how multi family properties are hard to come by in MD but that doesn't mean it can't be done! 

@Lane Kawaoka $3k-$5k on a $3mm-$5mm property is extremely low, I'd be wary of such a study as it likely relies heavily on statistical sampling or computer modeling.

Access to MLS data and statistics.

(rent estimate, comps, market dynamics, statistics, etc)For capex estimate, it make sense too, but I believe you're only able to do that at a later stage of the process?

Census.gov has a wealth on statistical information. 

Crime statistics don't show it to be bad, but I only take that with a grain of salt. 

Otherwise your just being kind of reckless for the sake of being bold or something when there really is no need to approach your first real estate deal like that.$1600 per unit seems a little high but I don’t know your market.

Couldn't disagree with that statement in bold more, at least in my experience.