However, Pasadena is full of older houses that need some modern amenities and features, like higher ceilings, smooth ceilings, new flooring, double pane windows, modern appliances, modern paint colors, etc. 

We plan to replace with tankless water heaters and in-unit high-velocity small duct central heat and air (using electric baseboard for the garden unit heat), and also remove all the radiators from the building.With the furnace and water heater removed, we would like to knock down the walls dividing the current furnace room, and make one larger rear, which is the bulk of the remodeling work to be done. don't not currently have drawings or architectural plans.

This house was roughly the same size and had the same color scheme, the same floors and even the same granite counters.

If anyone has recommendations for a grey color for the wall and a trim that goes well that you use please tell me!

The contractor I used on my last project wanted $11,000 to install a new 3 ton heat pump (brand new system, new compressor, air handler, run duct, etc) in this house.  

So instead of a machine painting a room-a longterm solution to turn walls into screens where they are protected more from abuse and can have colors change by hitting a button.

I haven’t paid much attention to brands because I just look for deals on darker colored planks. 4.2mm is the thickness I’ve got on clearance quite a few times.

so unless you're the kind of investor who falls in love with an address or paint color you can almost always find the returns that meet your needs within the time frames.2.

What is a good color for the shutters and front door.

And since we are learning about construction, being able to go after work and measure cabinets for the 4th time, or compare the tile to the grout, or pick up supplies so your expensive contractor doesn't have to waste his time picking out paint colors, flooring, appliance etc... are all things that are easier to do in person.If you have a lot of experience flipping houses, or working construction,  then yes go for it, you can be successful as a long distance landlord.