It has too many features to name them all here, but suffice to say they cover all essential features that you could need and have plenty of nice extras.

Suffice it to say they left lot's of damage too.

My guess is a Quit claim should suffice.

The only way you get discount rates from a decent experienced pm in small scale pm is if the asset quality is such that he determines that his hourly rate will still be suffice. 

If you have small family and not a lot of valuable stuff in the house, you could probably write out a simple division of property and that might suffice....jewelry goes to X, watch goes to X, furniture should be sold and money divided equally between X and Y.No will, no probate, no trusts, no attorney fees.Now...that's for a quick death...if you are going to die slowly, then you probably want the package of POA, health directive, and all that that they give you in a package deal now.One other solution I am considering for the properties is to put them all in LLC or maybe 2-3 or multiple LLCs if possible. 

Should notice to vacate via e-mail suffice?

If you feel you must introduce yourself as a new owner of the property, a simple written letter with your contact information will suffice.

So would a credit union suffice?

The cashflow may not be as great as a duplex but it will have to suffice.  

When a simple structure will suffice, use that.