I would suggest shopping it around a little more until you find a lender that offers reasonable terms and has a positive reputation.

If heat goes out in the winter we drop off several units, so they can be placed in different parts of the house - including every room with water like kitchen and bathrooms.We also have dehumidifiers, carpet blowers, shop vacs, puddle-sucker pumps, extra hoses, extra sump pumps with battery pack, squeegees, and portable AC units ready to deploy. 

So, if you are shopping around, trust your numbers and don’t be aggressive on price, you may be only bidding against yourself.

But I also don’t know of any appliance shop with no return policy.

I love talking shop.  

all of the things your talking about are readily available to you with simple google searches etc.PS BP has work shops that cost some money I have not been but I suspect those would be well worth the money..

Next piece of advice is shop this deal around with someone through the forums or local real estate groups (google for your area). 

The Short Term ShowThe Short Term Rental Management ShowThe Short Term Shop all day long.

District Court for the Eastern District of Texas in the case of Texas Top Cop Shop, Inc., et al. v.

But honestly, you'll want to shop around and compare a few local PMs since fees and services can vary quite a bit.