I do value-add and scattered site BTR in Dallas, happy to chat more!

Alternatively, there are a few sites out there that can give you an estimate - but what I've found is that these have been highly unreliable (even Propstream). 

I checked public records and online sites that says the houspe has two bedrooms, one bathroom, and is 1,008 square feet.

However, be aware that this might complicate things with the rehab and if you intend to claim tax benefits associated with rental properties.

The main issue is that in Sandbridge, there are a couple of management companies that have their own booking sites, since Sandbridge has been a vacation rental spot for a very long time, well, before Airbnb was a thing.

Read this book first - https://www.amazon.com/Every-Landlords-Property-Protection-Guide/dp/1413307000 - before getting into more complicated and expensive measures of protection.

Quote from @Joshua Batson: Don't make it so complicated.

I’ve tried driving for dollars, cold calling , as well sites such as Facebook marketplace .Any mobile investors , wholesalers or anybody in the area with strategies on getting more deals ???

If you already have a preliminary site layout showing the size and quantity of buildings you can put on the lot, you should be able to take that work on some budget construction costs and from there work your possible rents into the equation to see if what you have drawn makes sense cost wise, or if there is a more efficient way to lay the site out and reduce costs. 

Furthermore, depending on what was last on this site, or in close proximity a phase 1 may be necessary. 3.