Also - if anyone has rental properties in this general vicinity who can provide insight / verify my assertion that its not a war-zone I’d appreciate it !

The 2 to 3 bedroom upgrade is one of the highest impact changes you can make. 

I do my search and feel that Manchester, Liverpool , and Birmingham as most likely areas I can invest in , My goal is to have good houses "Single famliy" with good prices that can establish a good cash flow as passive income.For sorry I do not live in any of those ares, I know them from EPL and try to do the research based on income and thier share in UK GDP , for sure london is the best but I can not handle the prices there.Based on my reasech I can classigy them as follow : Manchester is the best in , Birmingham , and then liverpool.I see Liverpool houses is more but rent to prices ratio is low .I need your insights on this with your valuable advise , considering the area I choose , I will keep investing on it and enlarge my protfolio in it for the next 10 years.

Here are a few I recommend: "Rich Dad, Poor Dad" by Roberto Kiyosaki; "Set for Life" by Scott Trench; "The Unofficial Guide to Real Estate Investing" by Spencer; "The BiggerPockets Ultimate Beginners Guide" found here on BP; "The Book on Rental Property Investing" by Brandon Tuner.

On April 1 of this year, conventional loans (Fannie/Freddie backed) changed the seasoning requirements for cash-out refinances for BRRRR from 6 to 12 months so that threw a wrench in a lot of people with this method. 

Thank you for the insight. 

You can only have one in a city/location- you would need a very clear explanation of a job change to another location to do another owner occupied loan.

Most agents are self employed and EVERY agent has other obligations in life whether that be a w2 job, children, etc.

I do have enough to cover a lot, but wasn't sure if those that had been built before had many changes in out-of-pocket costs?

All kidding aside, by the wording of your question you need to do a lot of learning via books, resources like BP and in real life first.