Originally Posted by Brad Weber
Many firms work in both the touring and rental/staging market and and the installed sound market, however not companies that are conversant or qualified in one or the other market are adept in both. There are providers and people that are very good with portable systems or mixing but that have limited knowledge or background regarding installed systems and construction. You may have a firm that is good in both, but others should be aware that there are differences and that installed systems do typically involve aspects of design, installation and operation specific to that application.
I hope that you are not suggesting letting someone invest the effort in predictive modeling and developing a conceptual solution only to then go shop their work. If you do that then at least be upfront about it and compensate them separately for that effort.
Providers saying a permit is not required when it is can indeed be an issue. However, I'm not sure how a predictive computer model would be relevant to permitting, not to mention that it is often a matter of pulling a permit prior to performing any work and then later having the work performed inspected.
I would think that if you want multiple quotes, then the modelling would be a separate project that it is paid for separately. It wouldn't be fair to that vendor to use their work with their competition without compensating them for it.