A. There are two requirements have to be completed under the Land Reforms Act, 1969 to buy agricultural land viz.,
1. You or your family members must be an agriculturist as on date
2. You or your family members income shall not exceed more than 25 Lakh from the other than agricultural sources.
As you said, if others two are belongs to agricultural family by satisfying the aforesaid two requirements that they may buy the land. Further, your name can be include as owner once the land converted from agricultural to non agricultural i.e, Commercial purpose by following legal procedures.
B. Once the required documents submitted before the Revenue Department which means Deputy Commissioner office that land documents would be scrutinized by the DC as to whether the land was granted or not? if granted, was there any perpetual non alienation clause or not? What is the nature of land? and all the documents will be verified as per their parameters.
Hence, it may take odd time depends upon nature of land and work load in DC office and how you involved in the conversion procedure through your network to complete all these task. According to sources, bribe also one of important matter in this procedures. Apart from these, 90 days is general period.
C. In addition to the above clause, as far as the conversion for Commercial purpose is concerned that depends upon CDP/ODP plan is very crucial to verify as to whether the land is coming under the agricultural zone or commercial zone or Industrial zone or sensitive zone? if the land is coming under the agricultural zone is very difficult and impossible to convert the same and if the land is coming under the residential or industrial zone that land need to get the change of land use order first and later you can convert the same. Hence, you need to verify the land zone and Deputy Commissioner will verify as to whether the land belongs to any notification towards the Road proposal or any road widening or any acquisition proposal or not ? Therefore, so many things needs to be verified.
D. You can create the Company or Partnership Firm or Limited Liability Partnership Firm, but the Company cannot buy an agricultural land unless converted the same from agricultural to non agricultural purpose. Hence, the Company or Firm can buy the land after the Conversion. However, the Company can buy agricultural land for educational institution or to achieve religious objectives by obtaining permission under Section 109 of the Karnataka Land Revenue Act, 1964.