I'm now a stay at home dad influencing my kids.What I am trying to say, and what the other responders are saying, is that MINDSET is everything.

Does the main beneficiary have an ability to influence the trustees on whom to sell the house too? 

Yeah mate,Too much outside influences and logistical issues with new construction.It's much easier/less risky when you control as much of the process as possible and don't need approval from anyone for "this or that".New build works in other markets but why would anyone new build in 43612, 43613 or 43623 for example when they can buy dirt cheap and renovate for much much less than new build.Just my opinion and there are many ways to skin a cat when it comes to real estate investing 

I think Peter Harris’ videos are great, but the people who get you to sign up are disgusting swindlers  Most of the high pressure tactics come from the influencers they find in basements shilling crypto and only fans. 

I think its pretty evident current method of people with the most money and most influence drafting public policy based on their preference is not sustainable. 

While that does not directly impact mortgage rates, it does have a knock-on effect that influences them.

And now you have a guy who is not only manageing his properties well, but also deeply cares about the neighborhood, is picking up trash and having a positive influence on people.Merritt knows what he's talking about first hand - unlike half of the people commenting on here, who got mezmarized by the cash flow numbers, but rearely have been seen around these neighborhoods.

Understanding their objectives is critical since it influences the whole investment plan.

If that is the case, does the executor of the will, in this case his sister have any influence on whom the trustees sell the house too?

None of these are necessarily walk away items, but should influence your projected numbers in terms of an offer and projected short and long term repair budgeting.