I am English and live in Denmark with my girlfriend who is Latvian. She speaks exclusivley Latvian with our daughter who is 2½, while I speak mainy English but also some Danish when with other Danish speakers (including her 2 elder brothers from a previous relationship, who are with us almost half the time)
Our daughter has been going to Danish day care since approximately 9 months, and she appears to understand all 3 languages, but has decided herself to speak Danish, including at home. She is behind the others in her day care group in her language development, but we ae sticking with it and expecting her to catch up.
It is important for us that she speaks the local language but also that she can communicate with both sets of Grandparents.
I am not very consistant since I speak both English and Danish with her, and also some Latvian phrases I've picked up. I'm not too worried if her English speaking doesn't come immediately since she will get plently of exposure to English.