if you intend to talk to the company make sure the tenants signed release covers that, you might have to send it to them.

That is a lot units to manage on your own though so if you want an all-in-one, you just have to set the expectations, but most property management companies will not live up to it in the Northeast.

I have communicated this finding to the company via an email and will follow up with a call, my question is what more can I do in this situation?

Your mortgage company dictates your insurance requirements.  

We are currently using Excel for the most part for tracking the rentals, and using a third party account servicing company for tracking most of the seller financed loans (Weststar). 

I haven't worked with any of the two companies but that's because I've always had from developer financing and partners so I never needed it.

They are specialty trust companies and banks that make this service the core of their offering. 

Otherwise you show the lease to your title company and have them credit you the stated deposit at closing. 

When I started my PM company many years ago we quickly expanded from commercial to SFR as an explosive opportunity was available to me.

KBKG was the first company ever to launch a self service software for properties this small and it has been through IRS audit numerous times.