Scaling A Small Agency

[JQC]

I have reached a placed where I now have several clients and we're charged closer to the $2k/month mark for our SEO services.  We normally partner with the client's inhouse copywriter or content person so that's a piece we don't have to take on in house...however we do provide content strategy for their person to execute.

I'm now at a place where I want to scale and offer link building but quality link building services.  I do it all myself and I really can't keep up with the time management and amount of labor that goes into quality link building.  We're not looking to outsource or pay $10/hr for link building as I know we won't get the quality and impact our client's want.

Can anyone speak to hiring people for SEO/Link building purposes for a small SEO agency?  Right now it's myself and 2 interns, but even the interns don't fully know SEO.  Just trying to figure out how best to proceed with scaling and how much to pay a part timer we bring in house.  Also....how on earth do you all manage link building projects for multiple clients.  I hope the $2K I'm charging is a fair rate...I feel like I should be charging more.