Also, I really wanted the units to be up to my standard, but I think I spent more on them making them look better with upgrades, etc, than I needed to.

And by DSCR loan, I'm thinking standard 30-year DSCR loan.

Make sure you have smoke and CO detectors in appropriate places, GFCI outlets near water, functioning mechanicals, make sure everything is in good condition and you shouldn't have a problem.

Hard money and standard loans (Conv, DSCR) are unlikely to be available for deals under $75k.

However, if for example, the company did not install or disconnect the washer and dryer correctly (such as leaving a valve on) while water is turned off prematurely, causing damage, what language do you put in the Lease to also hold other parties accountable such as ALE and appliance install company?   

If you don't provide the information that's fine, but it would be a transparent answer.There are hard money lenders who underwrite to DSCR standards with their own rules, and commercial loans with use DSCR in various  applications. 

Im not a lawyer, Id flip that house though. maybe get the priest to come throw some holy water on it. 

If you have a good insurance broker, you should be able to use a more standard policy though.

This is standard practice, but there are exceptions.

STR standard depreciation is 39 years @Andy Lanyi@Jonathan Cooper even if you take Bonus Depreciation as @Basit Siddiqi highlighted the remainder 40% will be prorated using the Half-year convention or Mid-quarter convention used in line with what you read in IRS Pub 946