You can use the website affordablehousing.com to see the estimated rent for that type of property and location, but it is just a rough estimate. 

The MEDIAN rents (50% higher, 50% lower) for the entire country are surveyed, collected and posted by HUD on their website www.HUDuser.org by either county or zip code in all 50 states. 

Also, are there any social media websites with groups that I could network with that highlight investors & wholesalers? 

Hi, everyone I am please to have join this amazing website with all the help and knowledge that we can all give each other to become successful.

The Fair Market Rent (FMR) on the HUDuser.org website is the Median Rent for the are based on actual rent surveys. 

You may also be able to check the website to see what they registered your current use as...perhaps your county doesn't default to a non-agricultural use.

To figure out the land value , the county assessor’s website should have a breakdown of the assessed value for both the land and the building.

I go to the IRS website. 

But the complaint websites don't allow posts to be removed.

You go to their website, enter all the details of your deal(you have to have the deal under contract and it CANNOT be listed with an agent in the MLS), and someone will contact you in a day or two to ask you some questions.