Tax assessment, water damage, mold, unexpected vacancy, or something expensive needs attention.

And you'll have new cracks in unexpected places, old cracks that will not close, but instead enlarge.

This is where first timer builders get hurt the most, unexpected costs and losses. 

See that there are no unexpected leaks.

Make sure you are living within your means before buying real estate or you will get yourself into a jam as a landlord when unexpected costs come up.

It's purely by accident but help me to learn about how the real estate transaction works.

That's because you're dealing in such small numbers and a few unexpected big ticket items could wipe that out.

It is so necessary to let money accumulated into an account as reserves for when things break, where out, and unexpected surprises.

If you are using hard money you need to budget for the points and fees as well as traditional third party closing fees.Repairs: The money it is going to take you to rehab the property plus an extra 10% of estimated repair costs to account for unexpected repairs.Holdings Costs: Here is where a lot of investors get tripped up.

Something WILL happen unexpectedly.