https://southoctimes.com/18-viaduct-tronido-rancho-santa-margarita-unloaded-by-mark-a-and-lynn-l-blueweiss/
18 Viaduct Tronido, Rancho Santa Margarita unloaded by Mark A. and Lynn L. Blueweiss - South OC...
Oct 13, 2025 - The three bedroom, 2.5 bathroom home at 18 Viaduct Tronido, Rancho Santa Margarita was sold on Sept. 3 by Mark A. and Lynn L. Blueweiss for $1,000,000. The