Here is some hotel recommendations so you don't have to google them! They all have great reviews as well. I would recommend Airbnb or VRBO to find something closer to the venue. (For the location search on those sites use: Union Hall, VA or Glade Hill, VA.)
Hotel
Holiday Inn Express & Suites Rocky Mount/Smith Mtn Lake, an IHG Hotel
395 Old Franklin Turnpike Rocky Mount, VA 24151 (540) 489-5001
This is the closest hotel - only about 10-15 minutes from the venue!
Hotel
Hampton Inn & Suites Roanoke-Downtown
27 Church Avenue Southeast Roanoke, VA 24011 (540) 400-6000
Downtown Roanoke Hotel - about 30 minutes from venue
Hotel
Comfort Inn Airport
5070 Valley View Boulevard Northwest Roanoke, VA 24012 (540) 527-2020
Roanoke Hotel - 30-40 minutes from Venue
Hotel
Hyatt Place Roanoke Airport/Valley View Mall
5040 Valley View Boulevard Northwest Roanoke, VA 24012 (540) 366-4700