I will have access to internet and a cellphone on hand.

Whichever is ripe for the picking. - Let's say I want to, for example, choose a market that is hot like Boulder.

Hope all works out for you whichever way you decide to go. 

I have found the real value in the following: Subject cell phone numbers, tax delinquency status/ amounts, and mortgage information.  

The material is in various formats to help you learn whichever you feel most comfortable with.

As a General Rule, my Desired Profit is $20,000 or 20% of ARV whichever is greater.

Account Closed  this can all be done BUT its not DONE WITH NO MONEY.. you need money for gas. you need money to pay for your car note ( unless your car Is paid for) you need money for your cell phone. etc etc. who ever came up with the idea that you can make money with NO money I RE is just telling fairy tales. and its also very very market driven.

Can the owner still use the property for 10% of the rental days or 14 days, whichever is greater, in the tax year?

I lived without tv, in a tent for a while, had only a cell phone, sold my horses and could fill a box car in a train with all the ramen noodles I ate getting here.

Whichever market you ultimately choose, make sure you understand in which part of the "real estate cycle" that market is currently in.