After 5 years running my family foods company, I am looking to get into the real estate side of things. 

It is a personal expense, just like your food expense.2) Repairs made on the duplex are deductible against the rental income.Improvements:1) Improvements made on the personal side are added to the basis of the property, but you cannot depreciate the personal side of the property.

You are basically taking out a loan for personal use, just as you would spend money out of the credit card to buy a food. 

It depends on if IRS considers you an investor or trader. they look at different factors, I pulled court cases where they looked at these:(1) the taxpayer's investment intent; (2) the nature of the income to be derived from the activity; and (3) the frequency, extent, and regularity of the taxpayer's securities transactions (Kay; Mayer; and Moller)  A taxpayer is a securities trader only when both of the following are true: (1) the taxpayer's trading activity is substantial; and (2) the taxpayer seeks to profit from short-term swings in the daily market movement, rather than to profit from the long-term holding of investments. 

Just food for thought.

You'll want to look at indirect things such as "warnings to residents not to leave food scraps in hallways" or "needing to replacing damaged wiring" etc. 

Roaches need food and water, and they can't get either from people who keep their place clean.

Although it is not perfect, it is getting better daily.

I watch the market daily on what is being sold in what area and at what price and what kind of sale it was.

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