Martin County Single Family Homes December 2023 Market Report. The Martin County Single Family Homes Market Report showed slower sales activity from last year. We continue to face some economic uncertainties, though mortgage rates appear to have peaked and have started to decline. Closed sales were down by 2.3% from last year (they were up by 24.5% in November). At the same time, new pending sales decreased by 4.9% compared to last year (which increased by 8.8% last month).