Other options: radio and TV advertising, social media ads, google keyword ads.Generally, those that are good at drumming up off market deals spend a lot of time and money advertising in various forms.  

(photography, video production, meetings, etc) This is for companies to rent your place so you can usually charge more and they don't typically spend the night, just book for like 6 or 8 hours type of thing.The other thing you could do would be direct bookings which would require a website and some type of marketing to drive folks to your website. ( Social media, SEO ads, etc.)

For example, "To have all of my Social Media posting be done for me."

For example, "To have all of my Social Media posting be done for me." or, "To have X number of qualified leads incoming per day." or, "To have my website rank at Number 1 on Google without any work from me (ie. numerous blog posts, etc.)."2.)

My goal in the next 6 month to a year, is to purchase a multiplex/apartment complex and to build my social circle in real estate.

Her credit score and your income should be sufficient.A social security number is not just for credit rating; it is for identity verification.

I was curious how other people are using social media to market their properties.

Tenant(s) Social Security Number: this should have been obtained by the current landlord to do a background check during the application process.

I think a more effective way of advertising would be to just put it out into the universe (social media, go to meet ups, telling your friends, etc.)

Goals and story: My friend is a foreign national, immigration status has been approved but still waiting on green card, has social security and runs a lucrative business that mostly deals in cash.