I would save the money on marketing and get yourself out there (see blog post link below). 

Reaching out to seasoned investors in BP.Take advantage of all the free resources available here--the podcasts, blogs, and articles; and also network with more experienced real estate investors on BiggerPockets.Also, consider joining a local real estate investment club in your area to "rub elbows" with other real estate professionals and investors.Happy to help in any way I can.

I'm really interested in the calculators offered on this site.

We then created an additional part of the application that scrapes tax assessment sites for that info and imports it directly into the database with all the other info.

We then created an additional part of the application that scrapes tax assessment sites for that info and imports it directly into the database with all the other info.

After listening to dozens of podcasts, and reading numerous real estate investing blogs and books I'm concerned that the following will doom me to failure.I'm not interested in traveling and I don't salivate over quotes.I've noticed repeatedly that real estate investing masters love nothing more than going on a vacation, and it just doesn't do it for me.

As Gareth said, learning how to run the numbers accurately is also of utmost importance, especially when it comes to marketing the property to your buyers -- they will not go for the deal if the spread is not wide enough.I wrote a few biggerpockets posts on how to run comps, estimate rehab costs, and find motivated sellers and off-market properties, they are all here: https://www.biggerpockets.com/blogs/8814-investing-with-rei-kitI feel that the most important information is how to run comps, as without that you are at the mercy of what the seller says their house is worth and have no baseline for where to start negotiations: https://www.biggerpockets.com/blogs/8814/68395-how-to-find-real-estate-comps-and-calculate-after-repair-valueYou should start creating a buyers list right away, as getting a property under contract and running out of time to find a buyer is a real possibility.

Cleared a home-site, put in a driveway and some other site work with cash. 

@Kris JohnsonBP decided to delete the links to my blog (on my website).You can find my BP-approved blogs below.

I recommend watching the webinars on site, Listening to the podcast on the way to work, and reading every REI book you can find.