I'm in a similar situation. I have a decent amount of passive losses that I can't offset against ordinary income due to my income. Don't you have enough rentals though for the income to be offset by some of your losses? I keep thinking "when will I ever get to take these losses". I guess the more properties I acquire if they show income I'll get to offset it. Or maybe one year I'll take a sabatical so my income drops just to get to claims the losses! Sounds ridiculous I know, but think how much you'd actually make in tax savings.
A good tax strategy is definitely maxing out Roth IRA. Another strategy is putting a good chunk in HSAs so that you can eventually use that to pay medicare or healthcare premiums, etc once you're retired. It also reduces your taxable income now which is great. You'll never pay tax on that money and we'll all likely need it in retirement.
