Trees, Shrubs and Conifers: criteria for selecting a good arborist?, 0 by garden_mermaid

garden_mermaid wrote:
Does anyone have any recommendations on how to select a good arborist?

We would like to get a second opinion/diagnosis on our Robinia pseudocarpus 'Purple Robe' trees. Our HOA landscaping company says they need to be replaced. The homeowners who live near these trees question whether that is true or whether they can be preserved.

The trees in the center of this photograph are ones in question.

Thanks in advance for you input.