Fresh paint, new flooring, new appliances, updated kitchen and bathroom go along ways. 

Electronics and appliances saw the biggest increase, up 14.7% for the month, while furniture and home furnishing stores were up 12%, and online spending at non-store retailers jumped 11%.

Landlord is responsible for everything inside (appliances, cabinets, walls, flooring, toilets, furnace, hot water heater, etc.)

Trevino appliance is great.

Once you screen your tenants thoroughly and have a good set of contractors (electrician, plumber, roofer, hvac specialist, carpenter, handyman, appliance repair specialist) it makes your job a lot easier. 

Would I still be able to use my business credit card for purchases made on the property (such as appliances, improvements, etc) while living in it?

However, I installed new vinyl flooring throughout, updated electrical panel, new light fixtures, upgraded appliances, upgraded the restroom.

A lot of the furniture, appliances, kitchenware, etc. we could leave here and buy all new on the next house as we'd be looking to get new furniture anyway, so that would mean really just buying some bedroom furniture and mattresses.  

New appliances.

If he's worried about you revealing his "trade secrets" you can always agree to a non-disclosure of information for whatever period makes him comfy.Bare minimum: your offer should stipulate that once you go under contract demand the Seller must furnish an estoppel letter listing the terms such as length of the tenancy, who are the approved tenants, who pays which utilities, how much was the security deposit, how much is the monthly rent, who owns the appliances, and are there any other agreements written or oral between land lord and tenant?