New Post: How to draw text in WPF without WriteableBitmap constructor that takes UIElement parameter?

(After giving up then coming back) I found some references that provided 2 key points regarding the RenderTargetBitmap object to avoid the memory leak and subsequent crash:

1. Freeze() the object after Rendering the Visual (RenderTargetBitmap.Freeze())
2. Explicitly Clear (RenderTargetBitmap.Clear()) and null the object after blitting it
   

I seem to be back in business for cases that require text rendering.