If your rental income is proportionally greater than the cost of the loan & expenses (compared to your current DTI), your DTI should go down!

Barrier to entry is low; you can find some great deals here with proportional returns.

If it's just a bad buy it is a mistake of monumental proportions. 

They need to increase a rental appeal of the property and its income potential, and such increase should be proportional to the expense.For example, if you spend $25k to rebuild a bathroom, and it warrants a $100 rent increase, it would take 20 years or more to just recoup the cost.

Just have the road graded first , put a crown on the road and use a vibratory roller to compact when done 

You can have the best of intentions, but it only takes one little mishap to blow up out of proportion and next thing you know you are done.

Then your deductions are proportional to the amount of time rented. 

You will probably have more luck penciling deals a deal sizes a bit bigger, and then the closing costs will likely not seem as high (smaller proportion of the loan)

This trend, together with declining incomes, has increased the proportion of renters who are “severely rent burdened,” or pay more than 50 percent of their incomes for rent, as shown in figure 7.

The proportion of foreclosures being sold to investors has gone up for the sixth month in a row.