It will be helpful to look up some sample documents.

Perhaps a simple upgrade of all the sleeves and some in-unit amenities may be a better ROI (example: USB Outlets in all areas)Here is a sample of a 40 Unit Building I am in the process of flipping over - meaning purchased this asset in a C area - average rent is $425/unit for a 500 sq. ft. apartment, with new renovations new rate $649/unit.

This could be any number of things including:A CMA (comps) of the subdivision you are walking.Tips sheet for owners "It's time to clear the gutters, DIY gutter cleaning tips", or "De-Cluttering Tips", etc.A sample of a document included in your transaction package like Seller Disclosures, or a Buyer/Broker agreement.A Realtor newsletter relevant to the communityA contest submission form (where submission requires an email address that you can collect for an email drip campaign.)An open house invitiation for a listing you are sitting that weekendIf you bring an item of value to pass out, you are more likely not to get the door slammed in your face, and instead have people engage in conversation with you.

You need a large enough sample size to test, I agree again with Claire at least 1000 mailers a month for 5+ months to sample.3. 

For fun shoot me over a couple samples.

Would you happen to have a sample of what BGE is looking for with this diagram. 

To look at under the layers you need CORE samples of the roof.

Written by attorney investors, it's full of practical advice pertaining to management of investment property, has sample forms that can be edited, and - most importantly - they tell you what your primary state laws are and where you can read them.

Call every Contr you can find in your area and ask the same questions of each - ask to see pics of work, talk to former clients (although this is really not much help, nobody gives out the name of a disgruntled former customer).Ask to see a sample of their Proposal/Change Orders/Contract/Etc before you proceed, these are deal breakers if they are rookies and don't have the proper paperwork established.

Here is a sample letter that is often used by wholesalers.