Vee update
It's amazing how much of a difference one week can make. I did intend to wait a bit longer, but we've learned so much in this week about her previous care that i didn't want to forget anything.
The next day after her coming in we already had the dentist scheduled so we had Vee looked at as well. Dentist took a look and said her teeth were worse than all the other horses seen that day combined so she likely hadn't seen a dentist in years.
A few days later we had the farrier out and she said Vee's feet likely hadn't been done in about a year judging by their wear and condition.
As for where she came from! I was talking with one of the women who had gone with my trainer to pick Vee up and she was able to give me some more context about the condition of the space she was kept. Vee was about 500 feet away from any other horse on the property completely by herself in a paddock with a run in shelter. The entire paddock was mud including inside of the shelter. it was close to knee deep inside of the shelter which is part of the cause of the mud fever on all four legs.
On a more positive note, we have info on her training. She's trained up to level 2 of dressage and her ground work is PHENOMENAL. She stops on a dime, even taking a step back when you ask her to halt. We aren't doing any work with her currently, just focusing on getting more weight on her for the time being. she's in a stall with an attached run, it's a dry lot but we're turning her out into that rich spring grass for about half an hour a day right now and she has a filled bag of local hay to snack on between alfalfa feedings.