A Modular home if modern will appraise the same as a stick built all else being equal (style, size, fit & finish, location, etc), in fact there is no difference in the appraisal forms.

Thanks to modern technology, we've been able to successfully manage our properties in Utah without worry.  

There's more - we installed all new kitchen cabinetry, new appliances, and enlarged the opening between the kitchen and living room to make it more open, modern , and bright.

Security cameras and outdoor lights are all pretty standard in modern communities already.

Especially if you're trying to compare it to more modern construction vs a 1950's build, which yours looks like.   

I am looking to purchase a older out of date building, and retrofit it, in a modern manor, very cheaply (think pergo floors, ikea cabinets, etc.) in order to raise rents.

It gave the house a slightly modern feel with the gray and was fairly fast to install. http://m.homedepot.com/p/Home-Decorators-Collection-6-in-x-48-in-Antique-Brushed-Oak-Resilient-Luxury-Vinyl-Plank-19-39-sq-ft-case-60019/206268083?

The Subtle Art of Not Giving a Fck - a bit more of a modern take on some tried and true mental lessons

I’m looking to remodel a bathroom and seems like the new modern way is a double shower head on both sides with a tub in back.

The bathrooms were also reconfigured and updated with modern tile and new fixtures.