At the moment I am very overwhelmed with all of the information that is available on this site and that is available everywhere online.

You can order them online or pick one up in some Lowes stores.

I have access to all the documentation online and Wayne has been very forthcoming with answers to all my questions. 

If you use an online mortgage payoff calculator with $280,000 at 4.8% for 29 more years, paying $2000 extra principal per month, which is less than the $30K extra you say you'll pay annually with your line of credit, says your mortgage will be shortened by 21 years and save you approx $178,700. 

Is there a good option for tenants to pay online without me setting up my own website?

I did none of it online as Zillow is a joke when it comes to rental rates in my area.

That is how I got into it almost 20 years ago in Rochester & it has afforded multiple additional purchases & "practice" in this line of work, all while maintaining a regular full time job. 

@Jonathan Polanski The agent might be trying to buy for himself (conflict of interest), trying to keep the entire commission (horrible business practice), has had a bad past experience with your agent (unlikely but possible) or has a preferred investor lined up. 

But plaster builds up REAL fast, more than 100 sq ft is beyond the practical, and you'll need to pay for either a dumpster or a hauler. 

I have access to the full deed database online in my county.