So first look for any signs on the ceiling for water damage.
The floor leaks the ceiling creeks.
Pull up the carpet and the subfloor to expose the area where the squeak is located image 1.
Any hour services electric plumbing heating air 73 935 views 5 44.
You might want to go check for signs of moisture around and under your washer.
This can be easily fixed by creating a kerf or gap image 2.
Screw type fittings especially in drain traps are more likely to leak than are glue type fittings.
A possible cause of a ceiling leak in a two story house is an upper floor bathroom.
Water damage through the ceiling is somewhat common in florida so your sarasota home very well may have a leak somewhere in it.
A squeaking noise is often the result of friction between two boards.
A refrigerator with a blocked defrost drain for example can lead to ice buildup causing melted water to leak out and seep into the floor and onto the ceiling of the lower floor.
Where to find water leaks.
In rarer situations the actual toilet or tub plumbing may have sprung a leak.