Estimated taxes on a business I own that pays rent to me.

[pflatte]

Late last  year, we began renting a shop to a business we own ( an LLC). The shop is a new build and big. The income from the biz and plus the rents all trickle down to us but they are taxed differently. Should I reduce the amount of estimated tax payments since the tax burden does change somewhat? For example, say the Biz grosses $100,000 and pays $24000 in rent, reducing the income from goods and services to $76,000 - but we still have the $24,000 in rental income that, of course is reduced by expenses and depreciation.  Our usual ETP is $4000 per quarter but I wondered if that could be reduced a bit to $3500?  I hope my question is cleared than mud. Thanks! 

[Mike9241]

who has title to the building? 

[pflatte]

My husband and I, on land we own.