They invest in the area, they stick around, they feel loyal to their communities.

The really good attorneys and consultants normally specialize in a particular area which might be quite limited, and either utilize other specialists in their own firm (or that they hire), or refer clients and customers out to others when the problem is outside their area of specialty.  

It is really hard to find enough land to build in town, thus all the newer competitors are on the edges of town. 90% of our customers are in our zip code.

The company I work for does homes for very, very wealthy people that stand over us to make sure we are within a 64th of an inch in measure or better and we perform well, though not all customers are like that, that was an idea of the types of customers we work with and enjoy it at that.

Be loyal - If an agent has done a lot of running around with you make sure you buy or rent through them so that they make money from the deal.

So if I were going to use a custom one like you have, I would have an experienced professional (attorney or real estate property manager) review it for thoroughness.

I have rehabbed homes since I was a little guy with my Grandpa, who was a custom home builder.  

Outside of that we tend to use BK flags as further insight and do a little custom configuring to produce our bids based on simple ideas of if BK is filed and if Proof of Claim is filed, then payment streams and discharge and dismissal.  

A property manager is going to be looking for someone who understands the local market, and can provide good customer service.  

Your tenants are your customers.