If you need help with my plugins etc, post on the WordPress forums. If you post off of my plugin pages in the repository, I’ll see it and take a look when I can. You can read more about my Plugin Support if you need.
If you need help for hire, I have a list of people I recommend.
If you want to know if you should or should not use Multisite, I no longer answer that question. It’s too complicated and time consuming, and unfair to you and me.
I’m also not available for contract work. In fact, right now I’m not available for hire at all. I have a full time job that involves what you’d normally consider consultant work, so I’m busy. This doesn’t look to change any time soon.