In that case, your rental income may decrease as more workers transition to lower-paying service sector roles.

I have a BP member client who has purchased two oceanfront units there so far and another client of mine is scheduled to close on her first one later this month. 

They must provide quality service, or their clients won't want to pay the price.

My last 5 closings we went up against multiple offers to win those for my clients.

I am a preferred resource for a few folks in the wholesale lanes who meets clients that need funding.  

Tons of my out of state clients do this from California, Washington, Oregon, New York, etc.

You CAN limit that agreement to a specific property; but, as others have stated, agents are looking for a certain amount of loyalty from their clients.If an agent gets vibes from a prospective client that indicates that they want to cheapskate and not pay a professional for their service, they are not likely to waste their time with them.

However, be mindful of the Section 461 business loss limitation, which could restrict your ability to deduct excess losses in a given year, depending on how your rentals are reported.This post does not create a CPA-Client relationship.

What real estate tax saving strategies have you utilized with other clients?

As a CPA, it's very client dependent.