I am able to purchase a monthly subscription so I can access all records online, but I would rather physically go there to familiarize my self with the available records first. 

The physical and visual structure of the website (conversion elements) play a huge role.

Everything I own is PM'd, so distance isn't a huge barrier. 

I'm actually no longer in the area physically, so REIA's are a bit of a challenge now.I've done comparisons for properties on Craigslist, Hotpads, Rentometer and previous history.

I had a great podcast guest David Pelligrinelli from titlesearch.com discuss in amazing detail the process and the importance of getting the physical documents not the online docs...

In the end, I wanted to diversify between stocks and physical.

I have no exposure to real estate what so ever, well except for my house and a few REIT's that I own but not to physical investment real estate and I want to get into the long term rental property business and hoping to learn and grow here!

Do I go through one property by one property (will be extremely time consuming to physically inspect all the properties since they spread all over the Bay Area - and that I'm still working full-time at my current job - and make each offer one by one? 

You'll still want to do the marketing and get it into app stores, but you can certainly hire people to write the code.Realize the barrier to entry is VERY low for writing an app.  

Do I go through one property by one property (will be extremely time consuming to physically inspect all the properties since they spread all over the Bay Area - and that I'm still working full-time at my current job - and make each offer one by one?