Have you tried manipulating priceline?
Taking the 1st week of october and lets look at
Colonnade - immediatley we can see it has a Swimming pool & pet friendly.
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Now lets look at their Express deals.
We know Colonnade is in Backbay - so we tick that box for the area.
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Now we see 3 hotels listed. We know Colonnade is a 4 star (from the 1st pic), so we can ignore the other 2.
lets look at the 4* hotel in BackBay & pay attention to the amenities.
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It has a business centre, pet friendly, restaurant, internet, Pool, fitness centre & no smoking.
Nothing mentioned about parking........ so assume no parking available.
Now lets look at the main listings with the info we have. TIck the relevant area & facilities. As its a process of elimination. Straight away there is only 10 Hotels that are 4*
Only 3 of them have a Pool.
Out of those 3, 1 does not allow pets.
So we are left with 2 hotels.