They claim to charge in the "high 4 figures" - one web source says it's $4800 - to join their group and get access to their network and resources.  

NETWORK!!!

There’s simply less demand for them compared to larger properties.

It will take time to build a dependable and reliable network of licensed professionals you can trust.

Generally, cost segregation makes more sense on larger assets.  

There might be larger buildings available but I don’t follow that market too much through the MLS, only some NH Landlord Facebook groups which are both owner friendly and agent friendly.

We buy mostly almost move-in ready, less work and a larger basis for cost-seg.

Over the years, we have built quite a network of agents that bring us quality off market properties in the areas that we desire.

If your looking to network, we would be interested.

A PMC is the ONLY one that will deal daily with your property.Here's some copy & paste advice on hwo to screen PMCs:Recommend exploring as many sources as possible to get referrals AND cross-reference them to get as much accurate information as possible.Check out NARPM.com, BP’s Property Manager Finder (BiggerPockets: The Real Estate Investing Social Network), etc.Also, encourage you to learn from the mistakes of others - by reading posts here on BiggerPockets about owners not having their expectations met by their current Property Management Company.