I think that there are quite a few problems in the work of my company, but one of them that worries me the most is the too slow work with documents and clients.
I think that you should definitely hire a new employee who will do this work for you while you're doing really important tasks.
You can do that, but I think it's better to use proven and reliable resources, especially when it comes to templates for fairly important documents. I can recommend this site https://www.quoteroller.com/proposal-templates/ to you, which has a huge number of proposal document templates for almost any business, so be sure to visit this site.