I'd propose an "Acceptable environments" section, to differentiate houseboys who would accept a working arrangement from those who are simply looking for a companion.  That is, if working for a gay couple would not be acceptable, the section should indicate that the houseboy is NOT interested in such an arrangement.  This might work simply as a set of checkboxes, e.g.
 
		Gay couple, companion
	
	
		Gay couple, employee only
	
	
		Single man, companion
	
	
		Single man, employee only
	
	It might also help for the Compensation section to indicate MINIMUM requirements, instead of everything the houseboy would accept, if offered.