I mostly use a fetch software from a title company, but sometimes will use propwire and the mls

The property is worth 2.5 million, and the nightly rate is the same as my STR in Galveston, Texas.

Case for example, is people that receives commision from their W2 employer.With commision, bying power is 2 million homes. without commision it's 750k max.

The worst they've seen is $100k for residential and a million for commercial properties.

I have millions of dollars of real estate.  

If you’ve never owned a rental before, I’d highly, highly, highly advise staring out much smaller than 13 million and 100 units, and frankly unless you have 13 million in cash no bank is going to lend someone with no experience 13 million dollars, I’d start with multi family in one of three places, a class Baltimore, canton, fells, Fed hill etc, Frederick or the eastern shore of Md all of those markets are somewhat affordable have good tenant mixes and a relatively safe, see how it goes, if you like it, than buy another 2-4 unit, than another maybe once you have 8-10 units if you still like it, still are making money than go for something bigger.

Bigger Pockets has a book just for you.It's called First to a Million. https://store.biggerpockets.com/products/first-to-a-millionCheck it out!

Search Engine Optimization (SEO) is the key, and that will take a tremendous investment that likely will cost more than the reservations that you get.For an individual, self-managed property, you are pretty much wasting your time; the major channels are paying Google tens of $ millions per year to dominate the rankings. 

There are millions of them out there.

You’re missing out on tens of millions of people who visit these sites daily.