I think not being in sites like this has caused me to lose my edge. 

It seems to me sites like AirDNA and other revenue estimators for STR's seem to be giving me what I feel is an unrealistic number, my question is how accurate are these estimators?

We even added skip trace to all our properties.We have ebooks to get your through your first deal, articles on various insider strategies at the auctions, and 100's of reviews if you look at our google profile.Please feel free to call our office, our number is at the top of our site, because we answer our phones :)

What sites do you use and recommend to skiptrace the returned letters to the NTC list?

I'm new to BiggerPockets and have found this site from "The Book On Rental Property Investing" by Brandon Turner.

We will also allow a seller or buyer that already has an agent to connect with users that are using our site as their "agent".

Bob Copper at Storage 101 is who I'd recommend on whether the site makes sense for adding storage to it.

Like they said ^^^^^..... go on AbNb anbd VRBO sites and look up simiar competition in the same area.

For example, use crime databases provided by city governments or sites like NeighborhoodScout to find crime statistics by neighborhood/zip code.

Every time I have rented an on-site storage unit or garage to a tenant, I have always gotten less than what I could have gotten if I had found an off-site tenant to lease the unit.