Unless you're consistently finding product packaging in the refuse you can use to gauge consumer preferences, it might be only a marginal idea.Maybe consider posting a survey in the laundry room asking for the tenants' feedback: "Would you find a laundry detergent vending machine helpful?" 

I own a surveying company so have been involved in RE for many years just not as an investor unfortunately.

There are no experience requirements and at least for now there are no membership fees.

I am wondering the same thing but I see you posted this question over four months ago and no one has answered.I would buy the membership if there was something comparable to Property Farm offered here.

I know there are calculators here on BiggerPockets but I would need to buy a membership to utilize them.

Next MREE event is June 1st and of course I'll be traveling for work and can't make it :|http://1031mree.com/MREE events require membership or a $20 drop in fee, so that is a disadvantage compared to the free TCREI as @Travis Sperr mentioned.

BP has a marvelous membership and a lot of experienced members.

Once you are able to find a site that is already zoned for multi-family- because rezoning to multi-family is very difficult- and tie up the site with an earnest money deposit, you've then got to engage professionals for: surveying, land planning, civil engineering, geotechnical, environmental, architectural, MEP design services.  

As for the Pro membership in my opinion it was worth every $$$ I spent.

Get the broker to provide market surveys for your areas.