You can filter by the beds and baths and other aspects to make the results as close as possible to the one you're comparing.When I build my semi-automated hotsheet for investors, I take exports from the MLS from both the sales side and the rentals side, pull them into a SQL Server database, do some data cleaning to screen out as much of the garbage as possible, and run what I call my "magic query" that joins sale listing locations to rental listing locations by a conditional match on subdivision and beds/baths, or the average of the entire MLS if the subdivision is given as "METES & BOUNDS", with a flag in the output showing that those M 'n B rental numbers are MLS-wide averages for a given beds/baths and will need a more in-depth evaluation (like rentometer) if the estimated cash on cash return for a classic 20% down scenario, looks promising. 

Depending on how many points you want to buy, assuming you have above 740+ credit, your interest rates can vary widely.

Having said that, there are two ends of a pretty wide spectrum of philosophy on this subject. 

Charlotte suburbs have been red-hot pretty much since the 90s (with the brief exception of the nation-wide downturn).In my opinion, the "investor-havens" like Belmont, Kannapolis, parts of Union County, Rock Hill are a little over-rated.

I was thinking more for a single family so it would definitely be a good idea to get a quote on it beforehand due to the wide range of how much it could actually cost.

I think you are going to get a wide range of opinions here because ultimately where and how you choose to live/invest can be a very personal decision and vary based on personal values, desired lifestyle, investment strategy, etc.

In a high demand area, there's not a ton of turnover and you don't need to advertise as widely.  

This has allowed buyers to spread their prospecting across a larger array resulting in fewer offers per property and less aggressively advantageous terms for sellers on contracts.

My current primary has a 30'' wide back door **hint hint** that's not a common size.

That is a wide subject where you agree to make payments directly to the seller and they agree to act like the bank and take monthly payments for their equity.