Does anyone do there own prelim concept plans while under contract or doing due diligence? If so what software do you use? We have engaged Civil Engineers in the past and some will do it for free if you have a relationship but a lot of them also do it for an hourly rate or as part of their overall package. In an effort to not waste their time, if we are not yet sure the project is viable, or spend money before we have gone hard on a property Id like the ability to easy sketch up marginally accurate site plans