Your problem is probably your method of wholesaling. 

That’s our primary method of communication so it works.

Personally, I enjoy self-managing and screening is my favorite thing, so I'm not in the market for PM services, but a lot of my clients that I work with and other fellow investors would be interested in it.

I decided I’d find another method. 

I would like to do the BRRRR method.

Which is to say any attempts beyond the method of communication in the profile are likely to end up convincing the landlord you and your friend would be a pain in the butt as tenants. 

Quote from @Sean Quinn: My new favorite is in my signature. :)The best book I've read is "The Unofficial Guide to Real Estate Investing" by Spencer Strauss.

Without this foundation any money spent on gurus, courses, books mentorships that teach techniques and methods is WASTED, even if the methodology being taught is valid.  

Bandit signs, cold calls/texting along with direct mail is the method most people use.

Stessa is a great option, but Baselane is my current personal favorite, partly because it doesn't require that you use a special bank account for rent collection like Stessa does.