I currently part own \ fully operate a 6-unit multifamily in Baltimore City and am reaaallly looking to pick up steam in the investment\management industry in the area.I'm also currently constructing a Podio system to support my businesses as they scale up.

That time has passed and at this point, basic cash-flow and returns are no longer reasonable for small scale investors.I will not deny the ability of others to find the occasional diamonds, but you cannot consistently invest in that area with success here.

Do you use or know of a product that someone has developed on a small scale?  

I have not done a project of this scale however I've done a lot of research into it to remove yourself from the tenant management process

Looking to build a little more experience managing larger properties before we scale up and grow with 3rd party management.

Or even better returns because you have scale and can use that scale to get discounts (buying in bulk, full time staff, etc) and run your business properly.

Not quite sure if I'm going to continue using listsource in the future because its super expensive and will make it harder to scale because of so much capital being tied up in buying the list alone.

House hacking will give you a chance to hone your landlording skills and systems so you're ready to scale going forward.  

This is in fact why a lot of people like the automatic scale that comes with commercial.

At the same time, in order for me to scale quickly and not spend my time on non value add activity, I think a property manager will make sense.