Since you are reimbursed for all the direct expenses related to the dog, you cannot claim any tax credit for the dog living with you. If some of the expenses had been unreimbursed than you can claim those as unreimbursed employee business expenses. These expenses would be reported on Sch A if you itemized. Also note than only the expenses over 2% of your Adjusted gross income would be included in the itemized deduction.
You can deduct PMI subject to limitations discussed below as itemized deductions. You can also deduct the pro-rated real estate taxes that you have paid on the closing statement. You cannot deduct attorney fees, title insurance or title fees.
Premiums that you pay or accrue for "qualified mortgage insurance" during 2007 in connection with home acquisition debt on your qualified home are deductible as home mortgage interest. The amount you can deduct is reduced by 10% (.10) for every $1,000 ($500 if your filing status is married filing separately) by which your adjusted gross income exceeds $100,000 ($50,000 if your filing status is married filing separately).
Here is a link to various deductions available-
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Please note: This advice is provided with the understanding that all the relevant facts have been provided by you. Any change in facts might affect the advice given and hence may not be relied on in such cases. Nothing contained in this reply was intended or written to be used, can be used by any taxpayer, or may be relied upon or used by any taxpayer for the purposes of avoiding penalties that may be imposed on the taxpayer under the Internal Revenue Code of 1986, as amended.