Advice on retaining an attorney to go after deadbeat tenant?

[Jeff Wirth]

Our tenant beat us for about $8K due to not being able to evict her during Covid.  We were recently able to extract her at the end of her lease.  She skipped out without leaving a forwarding address although she is self employed and we seem to have her correct P.O. box address for her and her business(business does not have a physical location).  Have her business and personal email and her mobile #(unless she changed it after moving out).  Our lease says she pays all attorney fees if we have to collect moneys owed.  I am in New Jersey- the lawyer is asking $750 retainer and says the minimum we pay him will be $1,500.  Any thoughts or advice?  First timer here.

Thanks in advance!