You may want to get established prior to paying for an assistant.

Google what services your interested in providing in your area & advertise on the top sites that pop up.

but it depends on where you are setting up your business.  

My suggestion would be to try and find a provider in your area who has similar menus to use as a mentor.  Whatever you do, do not compromise your screening procedures regardless of what some guy might say.

Hi Amalia, ( pretty name! )
Advertising really depends on your aarea.The TER ad board touches many areas maybe a good fit. Preferred 411 is another great site.  Date check and room service are sort of dependent on your location but worth looking into!  Your own website gives you a spot to detail yourself.  Several free template style websites available if needed to get started.  Photos are essential!  Amateur or professional as long as they are recent and honest.  Screening sites (verify him) is worth every penny especially when learning how to screen.  Once you have enough reviews the provider only board here on TER is a great resource as well.  An assistant can be very helpful but best to build up your circle first.  Once you are busy the assistant can take calls, answer emails etc for you.