So I decided to stay in SoCal but concentrate in San Bernardino County.

@Adam Kuszczak most major metro cities will follow the same pattern...the "inner city" will be largely original housing stock...late 1800s to mid 1900's...developments typical radiate from the city center with age...so, 1950's through 1980's built properties are usually 3-5 miles from city center with the newest concentration of properties outside of interstate bypasses (usually forming a circle or partial circle around metro areas)...there is infill building and exceptions to these rules, but property age will be your #1 determining factor of where the properties you are targeting will be located.Building materials and methods of construction (along with codes) were very different from one decade to the next, but homes are surprisingly sturdy and most anything can be fixed.

But concentrate on getting the place rented first then circle back and deal with the deadbeats. 

I’m a broker/property manager and concentrate in Stamford, Norwalk, and Fairfield.

Markets with the highest concentration of job postings included Virginia Beach, Va.; San Antonio, Portland, Ore.; Nashville, Tenn.; and Seattle.

If they identify any areas with a lead concentration over 1.0 on the interior or exterior you fail.

If this is a large part of your portfolio or most of your real estate, I personally think that's a large concentration of risk. 

I Downloaded the Alexa app on my phone, and the Kindle app, so every time I buy a book at amazon in kindle format, I can ask Alexa on my phone to read it to me.By listening the book while you read it on the app, you can concentrate more, retain more, and keep a longer time focus on it.

I dropped the Veteran owned and operated to the page footer and concentrated more on what we’re about up top.

That's why I'd like to have a system that automates the workflow, follow up, etc. so I can concentrate on the personal contact which I know is the most important part of the business.