3) What is the recommended communication medium and frequency?

How is the communication?

Things I have never had a tenant care about (at least that they communicated): age/type of windows; countertop material; floor material that's not carpet; age/brand of appliances; plants/type of landscaping; color of house exterior; roof type/material; fence type/material; no garage; no dining room.

Of course I have done my due diligences in researching and  finding as much information as I could on how to get started, but I find that communicating on the forums makes for a more reliable and personable response. 

Some buyers/agents do like a preliminary communication, sometimes referred to as something like a Term Sheet, basically just something like bullets points, outlining a proposed offer.  

Be happy for other's success, show gratitude and respect and don't forget that nobody owes you anything.

Some cities define a separate unit as one that has no communication with the other unit. 

All people have a different preferred method of communication... some people screen all their calls but may respond to a text.

There are web-applications that some GC's and consultants use to make remote investing for their clients much easier and more communicative - remote investing can be tricky, but it doesn't have to be.

. - and by how he communicates, may even have some mental health issues.How should I handle this?