0ne of my children is on ss disability. I need a lawyer who is well-versed in SS disability so he will not lose his benefits when drawing my will.

You need to determine if a SPecial Needs Trust would be appropriate for your child.  This is a specail type of trust that allows a beneficiary to receive a distribution and still remain on benefits.  There are restrictions on the trust, so it is importnant to discuss the trust as part of an over all estate plan.