I have an LLC on a business that didn't work out. But for $50 (in my state) its not a huge loss, since I can use it for other purposes in the future, such as investing.
Just find a few businesses who don't have whatever you do on staff and offer your services. For example, in related to civil plans, most architectural companies don't have a civil on staff, so their plans look terrible and they get rejected by the city a lot. Another example related to civil...
In civil, sometimes a custom manhole or headwall may be needed, in which case you would have to create your own detail. Usually city details are created for city property, that's why they don't want it changed, but If you have a custom detail and can explain why its needed than that is up to...
