Hi, I'm new to this forum and hoping to gain much needed information to be able to assist my 27 year old son obtain the maximum from SSI

He was recently deemed disabled by SSA after an almost 6 year battle. However, he will only qualify for SSI. In anticipation of forms to be received and completed, I'm wondering on the best way to structure his living arrangement.

He lives in a condo I own. I can provide a rental agreement and a rental loan agreement to SSI to hopefully avoid 'in kind support". However, fair market value for rent in our area far exceeds the SSI benefit. I'm wondering since there isn't a mortgage on the property if I can rent the condo to him based on household expenses versus fair market rental value and still avoid in kind support or presumed market value? Thanks for any help and insight.