Financing will depend on whether the property is Residential or Commercial
A property is usually classified as Residential if it has up to four living units.
Anything greater is usually classified as a Commercial property.
The mortgage qualification for Commercial property is unique to each situation so the following applies mainly to Residential Investment Property
Lenders are more cautious in financing investment property than for a 'principal residence'
Even so, if you can make a minimum 20% down payment for investment property most financial institutions will want your business. as you should be considered very low risk to default on the mortgage.
Assuming you have a good credit score and the income necessary to qualify for the mortgage you should be able to get the most attractive interest rates available, whether you choose to go with a fixed rate or a variable rate.
You should also be able to negotiate an 'open mortgage' which means that there is no mortgage penalty (typicaly 3 months interest) if you sell the property and pay off the mortgage early.
If you aren't able to negotiate an open mortgage then try to make it "portable". This may allow you to move this mortgage into another investment property with no penalty or reduced penalties.
With 20% down you should be able to avoid having to purchase mortgage insurance all together.
Each bank and credit union will have its own position but with some negotiation you should be able to avoid mortgage insurance.
With 10% down you should be able to obtain financing with Mortagage Insurance providing that credit score and income are acceptable.
Remember that in all cases a Lender is likely to 'discount' part of the projected income from the property so you need to have sufficient overall financial strength.