Inspector recommended replacing the cooling system as it is more than 20 to 25 years old.Windows are falling rapidly, is this a sign of structural failure?

This can rapidly increase the number of rentals.With all of this said, 4 years is a tight window...but it is possible, with the right strategies applied in the right markets.

Invest for a long term hold and dont expect rapid payback. 

They should also invest in real estate.Stay away from the rapid refund places that advertise to poor people and overcharge them.

I disagree with you on investing in Michigan, it's a great market for investors based on the rental return you can get in an affordable city like Grand Rapids.

I live and invest in Cedar Rapids.

Those low teaser rates rapidly shoot up to 18/21/27% interest. 

I am looking for recommendations for a General Contractor in Cedar Rapids, Iowa. 

You may be able to rapidly build cash through a different strategy (i.e. fix-n-flip) for the first couple of years and then go aggressive after cash flow once you've got a bigger piggy bank to work with.3.

It doesn’t make sense to me that successful developers in a growing, rapidly appreciating market would be having financial trouble.