Minimum system requirements: PHP 7.0, MySQL 5.7.20 / MariaDB 10.1.30, 128MB PHP memory.
You can distribute Open Real Estate only if you save copyright in the footer of the product and in the system code (php files).
If you prefer to delete active hyperlink to our web site which is placed in the footer of the site, you should pay us 49$.
For this purpose you need send us a message and name the domain for which you would like to delete the hyperlink.
Full text of the license is available here