I would focus attention on what the actual rent would be.I think your taxes and insurance are way low.

It is better to get Umbrella Insurance than getting an LLC initially. 

seperate accounts seperate check books...)Isn t just getting General liability insurance sufficient to cover your liabilities ?

My question is, proceeding forward, should these homes be listed via MLS or could I still work with an investor as a buyer?

Looking for a great insurance agency at a reasonable price for 11 total units.

Deal with local real estate brokers who has insurance covering property management.

Since you didn't mention, I'll remind that you have to be a licensed real estate broker to do it and have an insurance, which is more complicated than your regular E&O insurance.This is a tough business and if you're doing just your properties, like 10-15, I'd really first thought it through before starting managing others in big volumes.

Many investors add value to the property, refinance at the higher property value, and roll the additional proceeds into the next deal.

It will not insure they will pay rent and you will likely be forced to evict rather than non renew a M2M lease.Keep in mind a term lease has no bearing on when tenants decide to move.

It is 1550 sqft, the mortgage is 810, taxes 330, insurance 55, no PMI.