I live in Washington State and am looking into doing a master lease with a healthcare agency in my area- essentially I'm buying a house and renting it out to the agency.

Final would be completing the application with the City of Redlands or perhaps in some cases San Bernardino County, pay the required fees to related agencies and then play the waiting game for approval and assignment of new APN number. 

There are, however, others that you’ll need to understand.I’ll give you an agency disclosure, for instance.

If I had to do it over again, I wouldn’t because the agency is slow and makes mistakes all leading to you not getting paid.

Finally I know that there are some states that require you to go through a real estate agency for closings, whereas others will simply allow you to use a closing agency, saving you money on the process.

From what I've seen, the structure overall isn't typical outside of those lenders. 80% LTV will likely come from a local portfolio lender, or only in a really good market with a higher class property with agency debt. 

To qualify for agency or CMBS debt the vacancy has to be roughly 15% or less with some exceptions.  

BTW, this is NOT considered dual agency. 

My real estate agent is going to do that on my behalf.Given that this is a new construction and there will be a warranty on the home, does it make sense to spent more on an independent, 3rd party agency to do the home inspection?

I'd look around more to find an agency that is willing to let you work part time, or ask to be a referral associate and work a certain number of deals yourself.