Hi Viviana,
First of all, I love your site! The color scheme is very appealing and the site screams professionalism. I did find a typo on the delegating to us page:
We work from
my our own home office and if you are located in Costa Rica, there are some on-site services offered.
Also, after that bullet point you switch from the plural "our" to the singular "I" and "my."
Also, on the About Us page, entrepreneurs is spelled incorrectly in the following sentence: "We are business entrepeneours offering business support services to independent contractors, small and medium size businesses throughout Costa Rica and Worldwide." (I have so much trouble with this word - it always takes me a while to think through the spelling of it!

)
You're probably already aware that the link to sign the guestbook isn't working.
Overall, great job!!