However, that was long ago before the (internet) in a specialized environment.

I would add this: the best in their fields train all day/every day.

To put it into terms; I was asked to come a chair a agent training at a big-brand brokerage (KW) which was about REI.

They have a lot of training available for things like prompts, activities, tracking for renewals, etc.

If you are going to expand your market or consider bigger properties, I suggest you investigate some multi-family training programs like that offered by @Gino Barbaro. 

Also experienced GP’s don’t have the time to “train” someone who is not a long term solution.

I was in the live trainings, but as I said, I am very new in the real estate world, so I am taking my time with it and rewatching the entire masterclass again so I can understand everything.

I've worked with a few (even trained briefly as I considered a career change, but didn't make the switch), all of them have said safety was the priority. 

Unlike auditors, these people have training and experience in tax law.5.

Here are some methods I have used so far.Free Sources:- information, or free internet search like switchboard.com- pipl.com (not too bad for free - finds social networking sites too)- Courthouse records (shows previous subpoena addresses and if they have a driving offence their date of birth in my county.