I use to :)Its a tough gig.Can be profitable but the best way of making it work is if you are hands on and direct on the ground.I always recommend B class as a good foundation and then later maybe speculate with C and D class.Thanks

As an owner of a house that old I can tell you I have learned a lot about foundations and gutters over the past few weeks.  

What about foundation issues?

Usually there will be cast iron under the basement floor which commonly fails after 100 years, and in St Louis, MO they ran clay pipe from the edge of the foundation to the alley where it connects to the main sewer line.

Fill in the foundation below.Check out the Start Here page http://www.biggerpockets.com/starthere Check out BiggerPockets Ultimate Beginner's Guide - A fantastic free book that walks through many of the key topics of real estate investing.Check out the free BiggerPockets Podcast - A weekly podcast with interviews and a ton of great advice.

Time to build the foundation below.Check out the Start Here page http://www.biggerpockets.com/starthere Check out the free BiggerPockets Podcast - A weekly podcast with interviews and a ton of great advice.

As an FYI you can get a general idea of rents on Rentometer.com or Padmapper.com.Crime statistics can be found at bestplaces.net  or truilla.comWe invest out of state and these are some of the goto sites we use.

Just like wrestling is to MMA, it is a great foundation to bleed into other aspects of fighting.

Some acreage with a viewand a mobile home on it no foundation.

It is just as important to make sure your cost of repairs are accurate and you don't forget to check on some of the big items like the foundation, mold in the attic, structural components.