[O.C.G.A. 43-40-12(g)] However, even in this situation involving personally owned property, the inactive licensee remains subject to the provisions of the license law requiring disclosure of his or her licensed status in real estate sales contracts and leases; in advertising to sell, buy, exchange, rent, or lease property, and in handling any earnest money or security deposits.

Be sure to do all the usual holdbacks - capex, vacancy, advertising, etc.Absolutely NO ERASER MATH (ignoring numbers that you don't like).Finally, a $24,000 home bringing in $1125/month sounds WAY too good to be true. 

If I fail in my initial efforts to approach PMs and LLs on my short list of target properties (these are very small neighborhoods), then I've decided to go with some combination of advertising and direct mail.

Should I try a mail campaign?

And I'm getting pretty good response rates on my direct mail campaigns that are utilizing the list.

Also you can advertise thier dedicated parking space.

SAVE YOUR MAIL CAMPAIGN MONEY. 

Ideally, you should run any campaign for 6 touches. 

I advertised on zillow and used a google voice phone number to manage calls/texts.  

driving for dollars,  calling listing agents, mailing campaigns, FSBO websites,   I am doing that