Thanks @Jack Medford for the additional color and reference. 

ALso pick a darker color like walnut brown, the core of the laminate is darker colored, so when the wear layer gets scratched it's much less noticeable when the top color is a darker too.Carpet is absolutely the easiest and most forgiving flooring, but, you will have to professionally clean it, it will stain easier, it will be more susceptible to bed bugs.also, carpet does not age well... and when I carpeted my units I found that we ended up having to recarpet every 5-10 years because the places wouldn't show well with 5-7 year old well lived on carpet, no matter how many times we cleaned them(cats and dogs were there, even worse).... with laminate flooring it's more like 7-12 years.Also, I approximate that you get a solid 10-15% more with "wood looking" vinyl, laminate, or tile.Just my 2c

Anyways, keep the colors to a neutral/earthy look.

.--- and you'd better find out what the rules are before you lift so much as a single paint brush, because they are even going to tell you what colors you can use.

I like the idea of getting a quit claim deed from an heir because that would at least give you color of title and standing to pursue a quiet title action. 

All are new builds in the Cape Coral area. 

Are there some tiles and colors that are trending these days?

Investors often like to look at their investments through rose colored glasses and a D sometimes becomes a C.There is no official rule, but here is how I would look at this: find out what the median price is for a city.

And why do you use this color/tint on your rental?

I have seen companies in the Orlando area offering what you are looking for, but not in Cape Coral, sorry.As for insurance I am going to DM you our contact that has been a god send for the FL market.Best of luck!