The more mysterious your letter seems (using different color paper, somehow making the letter stand out without giving away any info until opened), the more likely your letters will be read.Hope this works!

I can't recall the color offhand but it's a greige and I've used it in a few projects and got good results. 

The owner pays eviction costs so...Some insist on renovations at turnover to install particular fixtures or paint colors to make touch ups easier for them.

. §§ 90.396, 90.40324 hoursViolence or threats of violence by tenant or a guest; intentionally causing substantial property damage; giving false information on an application within the past year regarding a criminal conviction (landlord must terminate within 30 days of discovering the falsity); committing any act “outrageous in the extreme” (see statute); intentionally or recklessly injuring someone (or placing them in fear of imminent danger) because of the tenant’s perception of the person’s race, color, religion, national origin, or sexual orientation; second failure to remove a pet that has caused substantial damage

Has anyone used the same color planks for the entire house??

Have them leave at least 1 bundle of shingles so you have some for repairs and also will have the shingle manufacturer / color. 

If it's a stone tile, their colors are based on the slabs they came from. 

Postcardmania.com they're designing and mailing 5400 colored postcards for $2k total.

Sometimes buyers can have mental block about stupid things like paint color.

I don't want them changing their mind every day about the color of the backsplash in the kitchen.