In palm beach county, Florida can alimony or child support be garnished from
Social security retirement income benefits and if so is there a limit to the percentage ?

Everywhere and Everyone is subject to having social security benefits affected by a child support order. I found a website for you to check out SOCIAL SECURITY DISABILITY SECRETS: SSD SSI TIPS ADVICE TO WIN BENEFITS WHEN YOU APPLY & APPEAL FOR SSDI (SSA LAWYERS, ADVOCATES)