I have a small family real estate valuation company and I’d rather pay, for example, 200 USD/lifetime, not 99 USD/year. If possible, I’d like to use a free alternative. I had AutoCAD 2010 LT but it suddenly stopped working and AutoCAD support can’t help me. I would use it only for drawing 2D building and floor plans (looking from above). In the end, I would produce a PDF version that I can print with some printing company. Any ideas?