Aside from zoning issues, permits, and city/county requirements, which are highly variable, I'd like to get an idea of how many units/buildings and how to lay it out for most efficient use of space for those 2 acres.

Let the tenants know going forward all communication should go through your attorney.The other option is to get a property manager involved as well, but at this point i would go right to an attorney.

There are many syndicators that had built a reputation for having executed business plans, very communicative, and accountable.  

@Michael SmythiesThe biggest lesson is the wild and ever changing landlord tenant laws.To your area of interest:- Tenant relations: Keep it business, stick to the lease agreement, communicate, and the golden rule.

Our checkout time is 10am and we communicate this to them in the House Rules, check-in message, day before checkout message, rental agreement, and on a list of rules on the back of the front door.At 10:15am we send them an message asking if they have checked out because our cleaner contacted us and is waiting to get inside.  

Communication - Text, email and phone.

so I called VRBo as something doesn’t feel right, they said no one from VRBo called today, and they gave me his email address to communicate with him.

Communication with the loan officer is not the greatest. 

A/C window units are getting better, cheaper, and more efficient all the time.

Agreed I did hire a property manager just as soon as I got the complaint I just don’t want to deal with anything legal/court system especially in dcmy lawyer advised me that if I can settle for a month or two of free rent so do it but you’re right having my attorney handle all communications mivhh is by forward