The 78745 zip code is an amazing location within 20 minutes of downtown and to all of Austin's main attractions.

Any discount codes for the event?

As @Mark Hughes mentioned, these properties are generally not in foreclosure, but the city may continue to fine them for code violations which could push them in that direction.  

These are professionals with additional training and a stricter code of ethics.

Check your zoning ordinance and call code enforcement to see if it would be approved without permit and/or variance in the property.

Jennifer - You can look up your zoning online as well as the code regarding duplexes etc. but the best thing to do is call the planning and zoning dept in the city the property is located.

I am currently cleaning up the land and trailers 1 by 1, meeting with City Code enforcer to see what he would like me to fix to get on their good side What was the outcome?

This is question for a local plumber, maybe a commercial one who will know the technical stuff and also what the code says about a single water heater serving multiple units. 

The City of Austin is currently in the midst of a complete overhaul of its outdated land use and development code in an attempt to address some of these issues.According to Austin MLS data, the median price of a single-family home in Austin increased 68% over the past decade.

However we'll typically draw our rectangle/shape/whatever around the area we're covering, or pick specific zip codes, checkmark combined LTV 0-50% (sometime include unknown if small enough area), last mortgage opened 7+yrs and/or lived in the home 10+yrs.