She has since gotten a professional job (Google search of her name shows her working at an accounting firm), as well as a fiancé with income as well.  

I was just looking at the HUD website and it said "Buyer selects closing agent/firm" and I was just curious if there are any suggestions out there.  

I had to go back and study items to really keep ideas planted firmly in my mind.

If we bought used, would we then contract someone to install it and haul away the old one or is this something my semi-handy husband might be able to DIY?

He has a very firm understanding and background of the real estate market here in south Florida.  

Look, when the price of gas or diesel goes up at the pump UPS & Fed Ex and other carriers still haul freight and deliver packages.

But I'm curious if it is possible to sign on with a major firm under my company (instead of, or in addition to my personal) name so that I am building my own company brand from day one - before eventually going solo at some point in the future once I qualify for a firm license?

So - when you are negotiating with the seller, you can use including property management as a way to show him the market value of his property is a little less because any professional firm acquiring it would need to figure these costs in.  

We recently have expanded or property management into the Texas Market and are looking for someone to join our firm heading up property management.

Were your unit my unit and your predicament my predicament this is what I would do: Step one: Call the main line for all the major firms in your area ( Century 21, Keller Williams, Coldwell Banker, Smaller Local Names).