Total is 6 bedrooms, 6 full bathrooms, 2 half baths.I finished renovating the other side, put in the in law suite a little bar, fridge, oven, cabinets, etc.

So far we just wanted to repaint the walls, change the living room floor from carpet to vinyl, and repaint the kitchen cabinets.However, we are not sure if that's enough to attract good tenants (for a 3 bed, 2 bath detached home with a pool in Kissimmee area), or should we spend more time and update the countertop (not sure how it's important for STR), kitchen cabinets, bathroom vanities, etc..Since we are out-of-state investors, the less amount of effort and money we can spend to get similar results in term of rentals, the better for us.

For instance, cabinets - we can quote the exact same house for cabinets and get pricing that can easily very $100,000.00. 

Had to add mirrors and small wall cabinets in the bathrooms, then waterproof the cellar (seller split that with us).

A year ago when the tenant just moved it there was a leak so the construction people had to take out the cabinets to fix it but the tenant would not let them leave the cabinets inside the house and made them to keep the cabinets in the backyard outside, which obviously damaged the cabinets.

I did replace the flooring throughout the home with a good quality vinyl plank in 2018, repainted the cabinets and added hardware, and updated some fixtures before moving out.

I think it's reasonable to use AirDnA to evaluate a general market, but I would never recommend using it to evaluate a house because there are too many things a computer can't consider: home layout, view out the living room window, noise levels, quality of kitchen cabinets, and dozens of other considerations.

Then clean, use a white eraser on wall smudges, switch plates, doors, cabinets.

2) Second subtenant has complained of mold in his kitchen that I need to get fixed by removing the mold and replacing all cabinets in the kitchen.How do I handle the case? 

But I have stainless steal appliances, new kitchen, new cabinets, tiled floors and bathroom with the latest styles.