They can give you more insights to accurate rent, tenant preference and etc.

If a cost segregation study was performed, the accelerated depreciation may further reduce the property’s basis, potentially increasing taxable capital gains when sold.Depreciation recapture will occur when you sell the personal residence, so it’s essential to keep detailed records of all depreciation claimed while the property was used as a rental to ensure accurate tax reporting at that time.This post does not create a CPA-Client relationship.

Secondly, does anyone know of a good service for accurate revenue estimates for rentals in Costa Rica?

Also:_________________________________________________________________________Recommend exploring as many sources as possible to get referrals AND cross-reference them to get as much accurate information as possible.Check out NARPM.com, BP’s Property Manager Finder (BiggerPockets: The Real Estate Investing Social Network), etc.Also, encourage you to learn from the mistakes of others - by reading posts here on BiggerPockets about owners not having their expectations met by their current Property Management Company.

It is easy for people to download fake W2s, ESA paperwork, etc, with a few mouse clicks and a credit card. 

The changes that have occurred in the past year is making sure the comps are truly there, getting the material costs down (or accurate) number with changes all the time on costs. 3.

What are the best sources or methods you use to accurately set rental rates in your area?

Feel free to DM me if you'd like more insights on all this (we don't do biz in Alabama so got nothing to lose).Here's some other "copy & paste" advice on how to search for a better PMC:----------------------------------------------------------------------------------------------Recommend exploring as many sources as possible to get referrals AND cross-reference them to get as much accurate information as possible.Check out NARPM.com, BP’s Property Manager Finder (BiggerPockets: The Real Estate Investing Social Network), etc.Also, encourage you to learn from the mistakes of others - by reading posts here on BiggerPockets about owners not having their expectations met by their current Property Management Company.

Pictures are great, but don't make them unrealistic or you will get "listing was not accurate" in your review.I was 50/50 Airbnb/VRBO, then Airbnb inquiries came like wildfire, like Airbnb knew that I was engaging with VRBO. 

It should be pretty accurate - high level data sites are not always going to be perfect, but should always be directionally correct and AirDNA has a pretty strong track record.