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Trustee fees (declared as income by the trustee), travel and lodging, are deductible expenses not subject to the 2% floor, as they would not be paid if it were an individual return.
Fees for cleaning the house, changing locks, packaging boxes, dump fees, etc. would be capitalized or deducted subject to the 2% limit, if the estate plans to sell the house. (Yes, I know, estates, not being real people, do not have plans, but you know what I mean.) It makes no difference whether the fees were paid to the trustee to pay expenses, or whether the estate paid the expenses directly.
If the house is to be transferred to a beneficiary, then only what would normally be a capital expenditure could be reported as such; other expenses would only be deductible to the estate if they were taxable to the beneficiary, and there are probably few such.
Postage for most things is deductible, but I would say it would be subject to the 2% floor in most cases, even if the underlying expenses would be not subject to the 2% floor.
Court filings (unless the court proceedings were for something other than the estate, for example following up on a lawsuit the decedent filed or could have filed) should be deductible, and not subject to the 2% floor.
Funeral expenses are only deductible on the 706.
Medical expenses for the decedent may be deductible on the decedent's final return, even if paid by the estate.
I can't find a specific listing for death certificates; I would lean toward them being deductible, but subject to the 2% floor. You need them, not exactly because you are an estate, but because you need a clear title from the decedent.
Schedule B, and the distribution section of schedule I, is not necessary if no distributions are made, required to be made, or deemed to be made (under section 663(b)) during the tax year.
You should know that an estate can elect a year other than January-December; the deadline for making that election is the due date of the return, 4 and 1/2 months after the end of the first tax year.