Btw, why not upgrade beyond 2.09 firmware? I’d assume future firmwares better for bug fixes & feature add ons. What do I loose by going up from 2.09? Thanks!
Just don't do it! Trust us on that.
@Floridarailfanning sums it up quite nicely. I have another question to add...do you need repeaters at each house? I.e., are you planning on putting up a big repeater or something that you can access while mobile and away from your houses? If not, why not go with a hotspot at each house, assuming you are all hams?
If you are not all hams, you're going to run into the issues mentioned above. No DMR on GMRS, and no coordinator in their right mind would issue repeater pairs for non-commercial use, when other services (i.e. GMRS) are available for personal use.