Change in Search function of Joomla Component

Hi, I have a small project which needs to be done within next 24 hours.. We are using Joomla + component Realestatemanager... We need to change the search function in such a way that Property type is checkbox rather than dropdown.. The Check box should have option to select any property type right now in dropdown we can select only one option.. Please only serious bidders.. Start your proposal with "RTM" so that i understand you have read the brief.. Thanks