That takes more time to materialize. 

Also, it is worth mentioning that we are near the Mexican border, which we have been importing materials from for other projects.

Are their flipper secrets to getting materials at a lower cost?

Lumber sky rocketing  other materials you could not get like garage doors or refer's etc etc.

Probably a retainer basis. 

.- Landlord costs skyrocketing:      - Insurance: +30% (thanks, climate change)     - Utilities: +30%     - Property taxes, materials, maintenance all up     - Even lawn care and cleaning services cost moreThe article argues these costs are being passed to tenants, not just padding profits.

Caribbean islands are notably more difficult to operate short term rentals because of the lack of resources (materials and labor). 

Here's the language I use:Consent to Contact References and Perform Credit CheckI authorize [Type Agent Name Here] (“Agent”) to obtain, and to share with [Type Landlord Name Here] (“Landlord”), information about me from my credit sources, current and previous landlords, employers, and personal references, to enable Landlord and Agent to evaluate my rental application.I give permission for the Landlord or its Agent to obtain a consumer report about me for the purpose of this application, to ensure that I continue to meet the terms of the tenancy, for the collection and recovery of any financial obligations relating to my tenancy, or for any other permissible purpose.I authorize Agent to share my completed rental application (along with any supporting materials) with the Landlord.Applicant signature: _________________________________Printed name: ______________________________________Address: ____________________________________________________________________________________Phone Number: _____________________________________Date: ______________________________________________

Now, not so much unless you are buying at deep discount and are getting materials and labor much cheaper than normal.

I'm sure if varies, but I just want a range to help decide what to do.Land is in Pilsen.You are correct the price can definitely range quite a bit depending on the size, finishes, rough materials, location, etc.