We had the same thoughts but realized that there were too many opportunities to make mistakes and we don't have the time, luxury, or money. Especially the time or know-how. We want a farm ready to build a house in 4 years without having to do any labor ourselves. Trying to do that down the street would even be impractical, not to mention half way around the hemisphere.
We have a permaculture friend who knew of a guy on YouTube. I know you are thinking youtube. Don't get hung up on it, he actually knows his shit :>
He and his wife have been living in southern zone of CR on his farm now for about 13 years. They are tied into a partnership with some other local ticos and they do homestead development. We met them at one of their developments, discussed what we were looking for, and then did a few follow up visits until we found exactly what we wanted.
We just bought land adjacent to his farm and they have developed a homestead for us saving us much time and effort. It was all turnkey. He can also identify lots and act as an real estate agent if this is something you really want to take on yourself (everyone in Costa Rica is a real estate agent).
The area near his farm offers pretty much everything you are looking for. Stable government, proximity to major services (hospital),, titled land, ownership by foreigners, perfect growing climate, elevation close to 1000m, nice temperate climate to live in (no need for ac as the temps fall into the 60s every night), no drought or water issues, natural spring water, a creek along the border, electricity, many others doing organic permaculture in the immediate area. Our 2.6ha plot even has a system of ponds that are spring fed, so we can establish a fish protien source with minimal maintenance..
Lou