Yes, frequently, but not always for cash.

It's a myth of the middle ages that all land across Europe was tied to manorialism or to feudal relationships. Even the Burgundians found in George Duby's pioneering, massively influential thesis La société aux XIe et XIIe siècles dans la région mâconnaise (1952) have later been found by other historians to have more diverse relationships than the reductionist feudal structure Duby unearthed.

The allod is the term used when describing land held free and clear of feudal ties, and the allod is found across Europe throughout the middle ages. In my area of specialization, southern France (Occitania), we find that 90% of lands up to the beginning of the 12th century were allod ^1 . Furthermore, it's clear that relationships between the petty and higher Occitan nobles in the 12th and 13th century were often based on personal allegiances but not chartered commitments of land (fief) nor commitments of knights ^2 .

Another example is something coming under the broad term benefice. An example of a benefice would be uncleared lands held by a church or abbey which were then given to another party (perhaps a petty noble, or even at times a peasant) under special terms. The receiving party would commit to clearing and tilling the lands within 5 years in exchange for receiving 50% of it in allod, and the other 50% retained by the church ^3 .

^1 Archibald Ross, The Development of Southern French and Catalan Society 718-1050 (U Texas, 1965) is a massive, comprehensive survey of primary sources of Occitan land ownership.

^2 Fredric L. Cheyette, Ermengard of Narbonne and the World of the Troubadours (Cornell U, 2001) wherein Cheyette examines cartularies of lands between Toulouse and the Rhone to discover some astoundingly non-feudal relations and then nests them in the contexts of relationships described in Troubadour poetry to stunning effect.

^3 See Ross again