Personal Taxes

You only have to attach Form 1099 if there is any withholding listed on the 1099 form.
Do not attach your copies of Form 1099 to your tax return if no withholding is listed on them.
Keep them with your copy of your tax return.

Generally not. A housing allowance paid to you as part of your salary is not income if you use it in the year received to provide a home or to pay utilities for a home that you are provided.
The excluded amount must be considered reasonable compensation. Other criteria and provisions may apply. Speak to your local CPA for more details.

Cash or property you received as an inheritance, gift or bequest is not included in your income tax return.
Any interest, dividend or rental you earned on the inheritance after receipt of the inheritance is taxable.

A lump-sum payment for cancellation of your employment under the Age Discrimination and Employment Act is taxable income in the year you receive it. It is reportable on IRS Form 1040 as wages.

No. Costs associated with loss prevention, such as for burglar and/or smoke alarms, are not deductible.

The amount of your unreimbursed loss may be deductible. The deductible calculation is reported on IRS Form 4684. The deduction would be the amount of the loss, minus any insurance reimbursements minus $100 minus 10% of your Adjusted Gross Income Limitation. If the accident was caused by your driving drunk, then the deduction is disallowed.

No. You should receive a Form 1098 slip from your bank that itemizes your deductible mortgage interest and deductible points on your tax return.
Service fees such as commissions, appraisal fees, notary fees, abstract fees, recording fees are not considered points and not deductible in the current year.
These costs are added to the purchase price of the house to increase your basis. The acquisition costs, non-deductible closing costs, plus improvements over the years will be the cost basis used to determine any gain on the eventual sale of the residence.

There are five dependency tests that all must be met before you can claim a person as a dependent on your tax return.
The relationship, gross income, support, residence and joint return tests. Your father-in-law would qualify in the relationship test.
The relationship test includes child, adopted child, grandchild, stepchild, great-grandchild, brother or sister, son or daughter-in-law, father of mother-in-law, brother or sister-in-law, grand-parent, step-parent, stepbrother or stepsister, half-brother of half-sister, and blood relatives of uncle, aunt, niece or nephew.
Also included as a dependent is a foster child if he or she is a member of your household for the entire year except for temporary absence. Speak to your local CPA if you have a question about the relationship or the other four qualifying tests of claiming someone as a dependent on your tax return.

Yes. Expenses incurred in managing investment property are deductible even if the property is not currently producing income. You will list this deduction on Schedule E, part I expense line for auto and travel.