In the past, I have had two assistants, none right now. I always had them pick up the slack on doing the admin stuff. They did all my utility bills, monthly reports, loaded listings into the MLS and made sure everything was up to date on my website. I was unwilling to pass on anything that was hands on, I always do the property visits, bpos ect. I just paid 10-12 dollars an hour, through a payroll company that did taxes ect for me. Just the one thing I would caution, make sure they are doing everything you have asked them to do, I did not - trusted that they were working - and found out later stuff was not getting done. It got pretty ugly, and I am unwilling to take anyone on again because of it. I am too nice to be a boss.
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"No cause is lost as long as there is one fool left to pursue it". Wil Turner