Really the only people that do is NAR, and they are already actively involved in litigation on the issue.

My best suggestion for your team is speaking with someone who has done a similar size development to this in your region, and also a Civil Engineer. 

But if your issue will likely involve litigation (which, without knowing what your specific HOA issue is, I'm thinking litigation might be a possibility) you will definitely want a local attorney that will be able to appear in court, depositions, and/or settlement conferences if your issue ever gets to that point.

I enjoy tax research, tax planning, financial modeling, and litigation support helping attorneys in family law, business valuations, etc. 

I don't know how small claims works in TX, but when I had to chase a deadbeat for unpaid commission in Mass, he kept failing to show for hearings.I was finally able to present my case and evidence to the Magistrate who said I could have both a capias (civil arrest, where the defendant is forcibly brought to court) and an execution (sheriff or constable can seize assets and sell them to satisfy the judgement).What finally got me paid was when I gave him a hard deadline and told him that if I wasn't paid in full by X date at Y time, I was going to have his WIFE (also a named defendant) civilly arrested at work.As you might suspect, that got the deadbeat moving very quickly and yes, I was paid in full.

If the relationship is civil, I recommend you start by having a conversation that explains that you will be proceeding with an eviction (research the eviction process) and that an eviction will result in it being very difficult for the tenant to rent a nice home for years.  

Any recommendations for a real estate attorney and/or litigator in Washington?

He says it will cost more to litigate so just do the work and move on which is what I did.

The next step is Civil Court where you do have to spend money....and if he has some bucks, he can counter-sue you and prevail.....

Take notice....One of my favorite sayings came from a favorite Civil War General - "never take counsel of your fears" ...John Jackson