Socialize with them a little (like occasionally for a few weeks at least) before asking to help so you don't look too desperate. 

I found this cool way to have your tenants build social proof for your building by having them do good reviews for your apartment: https://modernmsg.com/What are other ways to fight bad reviews on your MFH apartments?

I would pay higher taxes for programs that would help homeless people to house themselves.Health Care (including for mental illness) - YESBirth Control for those who want it - YESSubsidized Day Care - YESEducation and Career Development and Job Training - YESFood Support (school lunches, food stamps, meals on wheels) - YESHigher Social Security payouts for those unable to work - YESTemporary Housing Programs for those working on improving their situation - YESI fully support programs that offer a hand up rather than a hand out.

@owen d.Have you heard of anyone receiving good return rates threw social media marketing?

Visit those PM's websites, social media accounts, BBB listings, etc.

You don’t pay into social security or Medicare, but you also don’t get social security or Medicare credits.

Furthermore, he picks retired people on social security to supplement their incomes since they won't have the need to scam you.

After college, I had a high-tech full-time job, and two part-time side jobs, worked 60 to 70 hours every week for 12 years to 14 years, didn’t have much social life due to busy working hours, then saved enough capital for down payments to start the real estate game.

I’m not a realitor but I have refrained from posting sfh deals I see on my website or social media.

Someone like the Hummer guy I'd check out on social media too--he does sound rather illegal-income-ish.