A follow up to the second question, I was thinking blank envelopes but it sounds like you are branding your envelopes with some form of print and then using a different source to actually label them with individual lead information prior to mailing.  

Mashvisor, which pulls in MLS data from most metro markets, displays the properties and gives you an analysis as to how much you can expect from the selected property either as a long term landlord or short term landlord. 

Input any address into Trulia and it will display a "Crime Map" which may display the info you seek or you may get it straight from the CSPD here: http://communitycrimemap.com/. 

Electronic signatures, everything via email or PDF or print.

The leasing or rental of units in those two family homes in which the owner occupies one apartment of that home as his residence is not covered by this law unless: The homeseeker or renter is a recipient of public assistance or housing subsidy; or,The leasing or rental process utilized the services of a person or organization whose business includes engaging in residental real estate related transactions; or,The availability of such unit is made known by making, printing, publishing, or causing to be made printed or published any notice, statement, or advertisement with respect to the rental of such a unit that indicates any preference limitation, exclusion or discrimination based upon race, color, religion, sex, sexual orientation, national origin, ancestry, children, marital status, handicap, veteran status, or public assistance or housing subsidy recipiency.The following text is effective 07/01/93  

You can take it to staples or someplace and have them print you a large format version.Also I like theses atlases for getting around; but they might not be big enough for what you want and i dont think they include a street index.

So I started with making a few play around business cards on vista-print.

Watch out for fine print that requires an additional fee at closing.

This is just the construction costs, with blue-prints, lawyer fees, surveys, etc., usually gets pushed up to $110/sq.

I am going to print and post flyers on campuses if the showings don't come through today.