Couple from Costa Rica - Looking for entire house / apartment with pets allowance short, mid or long term !

I am the founder of a environmentally friendly Cloud company in Costa Rica, also a Trail runner who loves the nature, dogs, technology and coffee. Recently I was accepted to do a Master’s degree at TU Berlin. My wife Andrea and I are moving to Germany with our family (3 dogs). My company will support me through this process, and we both also have blocked accounts for the visas. We are looking for a long stay apartment, from 1 to 24 months. We are willing to consider shorter periods. If you love coffee, we can bring and share some from Costa Rica ! We are very clean, love to provide care to our home, and willing to create long term relations.