Whoever created your Series LLC should have advised on this, its a simple process, don't necessarily need a lawyer, but YMMV.4.

They often place a higher value on their reputation within their agent community and will strongly advise against making a low ball offer.

He's the brains, lead generator, agent, and property manager of the operation (I trust him completely, he's a rock star), I'm basically providing the money.

I was tentatively hired, though no official paperwork, to help this RE Investing company to advise, improve, and streamline all of their Marketing efforts to acquire, buy, and sell properties.

Pleeeeease advise. 

How would you advise someone looking to get started with note investing to do so in 2018 given your two points above if they don’t have any pre-existing relationships in the space?

Readers are advised to seek professional advice.

We are looking to spend a considerable amount to generate direct mail messaging that works in Columbus and Cincinnati.

Real estate investing, over the long term, can create life changing wealth.I'd advise passing on this one. 

As far as advise, I wrote an article about it a while back that might be helpful: https://www.biggerpockets.com/renewsblog/2014/12/23/investing-out-of-state-essential-items-to-vet/