It would most likely require a decently crafted sales pitch...but, you never know until you try. 

Can you recommend form letters that I can look at to craft my note from?

Now that there are multiple owners, there needs to be an HOA mainly for Trash & Lawncare costs that are shared between all owners.The previous owner wants to be involved in creating the new HOA, but I think that as the new majority owner, shouldn't I, as well as the two other new owners, craft it ourselves? 

(Note: It’s been my experience that the most experienced landlord-tenant attorney in your local market will already have such an agreement that they use which has been crafted and fine-tuned over many years of learning what works and what doesn’t in that specific market.

We did research on the Executor and submitted a well crafted letter that we feel gave us the edge.

As a Real Estate Agent, who is a good at my craft, I understand the contracts very well.

That tenant had a arts and craft oriented business and they occupied the location for about 3 years. 

Buy books that are relatable to your craft.

Partnering up in this way will not only get you going in the right direction, but will provide a great opportunity for you to learn the craft. 

At least 3 beds because even people with only 1 kid want an office or craft room or play room, or whatever.