I would start with SFR, do lots of research here and on the web to learn how to manage your property.  

It is completely web based with an 85/15 split and 5-10 leads provided per month in addition to whatever business you get on your own.

Take the time that is necessary to develop the substance before you attempt printing cards.A poorly developed business concept shows in your card: no real business name, no "what I do" statement, no legal entity, no fax number, no company web site and just a random gmail address. - All that shows you are a rooky.Until you have established and developed all these things I would go with less is more and just do name, phone number and email.

Options:- put a web address or a QR code on the sign to direct them to the ad.

While you not be be qualified as legal counsel, your web presence and SEO have you the go-to CA usury legal expert.

Check out my web site.

Raising capital by issuing any security is a complicated web of securities regulations.

I use some of the real estate income to finance other investments like buying gold and silver, buy 2 ATM & 3 vending machines, raw land for private park slots & learning how to raise capital for more real estate and a business.

And you can research the topic on the IRS web site.

Have a look at their web page.