Basic yard maintenance agreement

[Alex Ballas]

Looking to hire a local guy to mow the lawn, collect litter, take trash bins to curb.  Do I need a signed contract for that?  Do I need to worry about insurance and workers comp or is any of that covered by a landlord insurance policy?  It's 4 unit with yard.  If he injures himself or damages the property or hurts a tenant by accident, whats the best contract to have in place?

Thanks in advance, appreciate the feeback