I'm a beginner and I'm looking for tips on how to perform a proper market analysis on houses to buy and hold long term and rent out.Right now I'm looking through all the MLS websites and finding properties in locations and within my price range.

You shouldn't pull them out of thin air.Look at a variety of websites marketing rentals: zillow.com, realtor.com, apartments.com, etc.

The rent prices I was basing off of rent estimates I found on the web, so I'm not sure if that is a factor, but I can reassess.

The Rockcastle Megasite is an example of a site ready property & is only 20 minutes north of London. https://dataispower.org/rockcastle-mega-site/. 

SOLO-SORRY STILL TRYING TO NAVIGATE THIS WEBSIT (SRY FOR THE ALLCAP HERE) Send list of assignment friendly title companies i can call hopefully monday. 

Just want to know your takeaway before implementation in my website.

On-line Auction Foreclosure Website.

I have been lurking on the site and attended webinars for a while but I am just here to learn and I am soaking it all up!

Do you have any advice on particular sites to look into to find tenants like this needing placement?

These are the ones where you just enter some information about the property into a website and it gives you a report.