How to properly introduce self to seller in 1st conversation.. Also what all information should I have before even contacting seller?

[Jennifer Williams]

Good Afternoon BP

Ok so my research is coming along well, Im more comfortable with presenting the information  to Investors then I am with how to sell myself to the seller. I will hopefully be moving on my 1st wholesale experience within weeks... I do have a few questions as far as the 1st few steps. 

So once you locate a potential home and have located the owner(seller) What is done immediately after?.. before even contacting the owner.

In that 1st conversation, how would I properly introduce myself and what I am doing to be able to captivate them? .. Where can I find a detailed property research form? ( I have googled, this is the only form I cant find)... 

Then there's Property Inspections, Do you all have these before contacting Buyers? 

The last question is.. Can someone please explain the whole ARV % calculations... I understand its after renovation value but as far as keeping it 70% I don't understand how that percentage is calculated. Thank you in advance to anyone that read all this and willing to set me in the right path to begin.

Have a great afternoon.