"Commercial Revolving Line of Credit [...] We do not meet threshold to report lines credits, would I need to report this in my LAR."
If you don't meet the threshold for LOCs, then you wouldn't report LOCs. If you do meet the threshold and any of the funds will go towards purchasing dwellings (income producing or not), then it would be reportable. I cannot exactly tell what is meant by "working capital needs arising from uses of funds to purchase income producing properties offered as collateral." If that means to replenish cash used to purchase the collateral, then that would not be a reportable purpose.