Go on the government RTA web site and study the regulations before even considering investing. 

ANYONE that tells you to drive for dollars, cold calling or texting, instead of asking you if you have a positive image online set up, honestly shouldn't be giving ANYONE any advice.Now, as we are talking about credibility, let me show you I am not just all talk.Apply what I preach.I started with building a reputation. and a web presence.

Try viewing your own listing in a different web browser as if you were a prospective renter and make sure the location and all relevant details are accurate. 

Is it possible to find reliable wholesalers on the web- meaning not necessarily through craigslist but that have their own websites?

I find it curious that there is very little negative info on them on the web, even Mother Theresa who was a saint had detractors especially on the web.

Usually I structure my due diligence periods in phases that only conclude after the requirements of the previous one have been satisfied (i.e. all financials requested are received + 7 days to review documents).Contract to close, most multifamily deals, unless there's some significant changes or external approvals needed (i.e. city permits needed to rehab a rundown apartment complex), shouldn't take more than 90 days, and see many close in 60 or less. 

Do they use craigslist or other external sites as well?

By partnering up with local investors, lenders, property managers, contractors, wholesalers, web designers, escrow services, etc.

They generally have about a 75ft sensing range and can be additionally equipped with external battery and solar charger, so no AC power required.  

@Chris Watkins thanks for the info I will do some web surfing.