I also have access to my local MLS thanks to my dad's gf who is a licenced realtor 8)

I WOULD ASK YOU, "DO YOU HVAE A COPY OF THE ORIGINAL P&S" AND " DO YOU HVAE A COPY OF THE ASSIGNMENT"- IDGAS IF THE SELLER WAS UNAWARE OR NOT (ALTHOUGH THEY SHOULD BE AWARE FOR MORAL AND ETHICAL PURPOSES)- IF THERE IS NOTHING IN THE P&S STATING THAT IT CANNOT BE "NOMINATED" IS THE MASS BOARD OF REALTORS NAME DESCRIBING A NON-LICENCED ENTITY (A NOMINEE)...

So I'm curious would you in turn allow them to photograph your drivers licence and text it to whomever?

Or you have a licence yourself in which case you just play the role of pissed off buyers agent that will report the other ones to the state board for sanctions yourself.

If they were a true cash buyer that did not have any financing costs and did not list it with an agent on resale (Either have a licence to list themselves, paid for a flat fee listing on MLS or didn't seller via MLS and hoped to even save the buyer commission too) then there is some meat there.However if they are buying with 3pt/12% hard money and need to pay a 5-6% commission on the sale you are down to like $25K before paying any other transaction costs on the buy or sell, any taxes, any utilities or any other holding costs that might be there.  

I drive regularly but I'm Licenced, insured, vehicle is inspected and well maintained.

I just say I have a contract to assign.I find my buyers just on CL just asking who wants t be on my list.I am very careful with this.And yes, the next step is getting my RE licence.

what are the pros and con in having a real estate licence when buying and flipping and buying and renting?

I have HAD my Real Estate Licence, but let it drop. 

If you need the class room environment you will need to find a Real Estate School in your area.I was an Investor before I received my RE licence, so it is not necessary to have one before you start Investing.