I've brainstormed with him for something like a day care or some kind of internet business (that is what is renting the upstairs). 

Search for it here or other places on the internet. 

PShttp://usmortgagecalculator.org/This is the best mortgage calculator on the internet it includes insurance, taxes and PMI. 

Yes.While my wife, daughter and I temporarily live in a small apartment, we're searching for a new primary residence, and at the same time I'm stalking the internet for deals, and "Driving for Dollars" for investment properties.  

I do internet marketing full-time till my real estate investments can support me, so feel free to ask me anything website/SEO/internet marketing-wise.

Truck stops are not exactly known for having great internet so I am not sure if the problem is me or the calculator.

In the past I would take people for their word, and took the listing off of the internet, to only have to put it back again. 

If you haven't seen it yet I would check out the Ultimate free beginners guide. http://www.biggerpockets.com/real-estate-investing Direct mail was one of my options, by obtaining a ore foreclosure list, as well as bandit signs, and setting up a internet page through realeflow.com or whichever website I see fit, but I have read about the tax lien auctions here in md, also a good way to receive interest on your money, but did u use any bandit signs and where they effective?

There are a couple of guidelines I've found on the internet that some may use which both revolve around price to rent index (or vice versa).One says if annual rent is >9%, you should buy instead of rent.Another one says if purchase price is 15 times or less the monthly rent, it's better to buy.I've incorporated this into a table along with our own % rule metric investors look at.I'm using purchase price of $100k for easy of figuring.  

Consistently request credit increases with the credit card.Assuming you've stayed current on these accounts, ask any company who has billed you (phone, utility, cable & internet) to report your payment history to the credit bureaus.