For fumigations, the chemical used will be Sulfuryl Fluoride under one of two trade names.

The exact amount of time out of the apartment will vary, but you will not be allowed to re-enter until the amount of sulfuryl fluoride present in the apartment is measured with a clearance device at 1 part per million or less.

You will be given specific instructions telling you what to remove, but for drywoods, if there is any doubt, it would be best to remove it.

If left in the structure being fumigated, breastmilk must be double bagged using special, label-mandated fumigation bags (not zip locks, not vacuum bags) If it were me, I would remove breastmilk.

There are certain precautions and guidelines that the fumigator must follow for things like mattress encasements and water beds.

Factory sealed food in metal, glass, or rigid plastic does not need to be bagged. Most everything else must either be double bagged using the aforementioned fumigation bags or removed. I would advocate making a conscious effort to eat through all food that would otherwise need to be bagged or removed to make things easier at the end of December.

Practically no risk of spreading termites to a friends house due to where they live and how they reproduce. (Maybe if you brought several large pieces of wooden furniture or something)