I'd like to be able to use my phone to measure the space digitally and then work on my laptop to create a design, especially for things like a kitchen with different options for cabinet placement, etc. 

Can they use the kitchen or would you prefer them not?

Especially when it comes to bathrooms and kitchen.

Infact, it's advertised online with the Realtor.com site showing all the amenities of my apartment, the electrical, the plumbing, the windows, the door, the shower and toilet and even the kitchen sink so obviously it must be legal because I can't see an agent of his caliper risking his career and livelyhood for undisclosed info.

I went to see some tiny homes here in Pomona California. 20x20 foldable container house two bedroom one bath kitchen living area for $28,000.

So I basically would want a person who looks at the whole house and gives me the appraisal cost, the areas that need fixing (ex. kitchen cabinets, tiles, bathrooms, plumbing, electricity, etc.), and how much the cost would be.Then this way, I could decide to proceed or not based on the assessment.

Fresh landscaping, new paint, new layout, add a bath, a room, a garage, finish the basement, new roof, kitchen etc are just some ways to add 20,30,40K to the value with sometimes minimal investment.

I've found that Rentometer either overestimates or underestimates the rent depending on the location and condition of the property (e.g a house with updated kitchen, bathrooms and flooring will have a higher rent than a house where everything is 15 to 20 years old but still functional). 

I've tried it and been screwed with it more than once.Bathrooms get semigloss light blue, kitchens get this semigloss light orange/salmon color that we like, living areas get a light gray that doesn't fade easily.Over time, you see the white oil paint, anywhere it's in the dark and not exposed to sunlight , with yellow and darken.

The best drywall job I got was when I had the entire first floor (9 foot walls and the ceiling too) -- living room, kitchen, bedroom, bathroom, the back hallway, and the upstairs bathroom all drywalled AND textured for $2,000.