Hi and welcome to the forum. You should be contacting the place that was suppose to make the repairs. Forest River is only responsible for warranty work turned in to them and they pay the dealer for the repairs. Did you not personally check to see if each item was corrected. Never take there word for it. The other thing that is scarey is if the dealer turn all this in and falsified repairs. I'd been suspicious when you found the trailer had not moved.
Do you have the trailer in Michigan if so I'd find a dealer there to take care of your warranty work.
2015 35 FT V-Lite 30WRLIKS Diamond Package
2015 Chevy 2500 6.0 4:10 gearing.
Days camped in 2015--46
Days booked for 2016--60
Days camped in 2016 so far 51