I'm a licensed real estate salesperson and investor who owns some single family houses in an area that attracts people seeking vacation properties, but is not very densely populated. 

I am a General Contractor working primarily in the Philadelphia and South Jersey areas.

Dont know your area 

If it's been listed for 100 days, do you think other investors in the area are keeping an eye on it?

Very few places in BR that I'm aware of will bring over $2k/month for a 1200sqft 3/2 and those are A/B neighborhoods with $250k+ ARVs.

You’re right, I’m trying to use the expenses to offset my W2 income, there are indeed some grey areas on what time counts and what don’t so I’m trying to figure that out as I log my time.

The house is a high ranch single-family home with three bedrooms, a bathroom, living room, and dining room on the first floor, and a finished basement that has a full bathroom, bedroom, and common area.

also suggest some good rental market areas in and around charlotte or concord

You should charge the market rent in the area you are in based on what you are offering.

Not knowing anything about Myrtle Beach, would you guys say that it's a good area?