But was hopeful to find people, either short-term renters or vacationers, to "fill in the gap".Unfortunately, I was a little too late to the game for MG and wasn't able to arrange furniture. 

That means people like you, me and Julie are in a good position as we have places that appeal to short drive vacationers.

Not the case in Sevier County as it is an extremely mature market (over 80 yrs of home rentals for vacationeers).

HOWEVER, we have a great lake view, private beach, private launch ramp, a safe, gated community and it's out on "the island", where vacationers want to be.

It seems it caters more to the crowd looking for a room or a couch rather than a more serious vacationer.

Seattle Eastside is home to numerous contractors working at Microsoft and other hi-tech companies) or are they vacationers/tourists who stay for a week and return home?

Again, "Keep the Vacationers Away" is a sure fire way of undermining your entire enconomy. 

Look into travel trailer parks, I mean the vacationers type.

IGTV is pretty hot and unlike other media - IG appeals to travelers and vacationers, having great mini vids with direct links to your booking page along with good hashtag discovery might be well worth it for you. 

You may have more local vacationers than people who have to travel a longer distance.