Since their credit was pulled, do I have to send letters to everyone who applied but didn't get chosen?

@Ben Brenner The home inspector is chosen by the buyer, not the agent.  

Unfortunately another applicant was chosen.

I have chosen these markets for my initial goal because I am still a beginning investor and my origins are from Atlanta.

Match the entity chosen to the business plan.

It’s worth noting that the buyer is a military friend of the broker (that’s why he was chosen), but the buyer is really pissed as well, as they’re paying rent until they can close this thing.

You don't need an MBA, but you do need to learn really how the business world operates, it's not how most people think, at least on here.Then pick your industry, here, you have chosen RE.Basic knowledge is dry, unexciting, when you read it it's hard to see where the money is or how in the world does knowing that a legal description "closes" or what a certain deed of conveyance does to make you money.The reason most have problems trying to follow some guru path to wealth is because they don't understand the foundation that the strategy is built on.In basic business law you'll learn what an endorsement is, what an assignment is and the different types of contracts there are (not talking RE contracts I'm speaking of unilateral and bi-lateral contracts).

Some realtors seem to get shy when investors say they are shopping for an agent; I prefer to make it clear I won’t steal business from another agent, but I will work with them if they choose to work with me and haven’t chosen one yet.

This is the way you have chosen to do it.  

If the feel you underinsured (by how much depends on the policy and options chosen), you will have some reductions in coverage.