Is this sentence correct?
Could you please help arrange one apartment with two bedrooms set up with twin beds for them?
Is it correct? I like to book one apartment with two bedrooms, but the bedroom should be set up with twin beds.

Question

Is  this sentence correct?
Could you please help arrange one apartment with two bedrooms set up with twin beds for them? 
Is it correct? I like to book one apartment with two bedrooms, but the bedroom should be set up with twin beds.

Answer

Try: "I would like to rent a two bedroom apartment furnished with a twin bed in each, please."

Or: "Would you help me find a two bedroom apartment that is furnished with a twin bed in each?"

Answer

Could you please arrange an apartment with two bedrooms, each containing two twin beds?

Does it have to be one sentence? It's kind of complicated. I suggest something more like:

Could you please help arrange an apartment? It should have two bedrooms with two twin beds in each.

Answer

Absolutely correct. You may want to clarify by saying "two bedrooms with twin beds in each room." That is the only addition I can think of for this sentence.

Evden çıkmadan dil öğrenme fırsatını kaçırmayın. Deneyimli dil eğitmenlerimizden oluşan seçkimize göz atın ve ilk dersinize şimdi kaydolun!