RECOVERY OF SOCIETY DUES FROM UNOCCUPIED MEMBERS IN A HOUSING SOCIETY

we, members of a villa complex, booked a villa almost 8 years back and paid payment as per the initial contract / construction agreement including the payment for undivided share of land. The plot was purchased from a construction company owner and he made clause in the agreement that no construction work can be undertaken by outside agencies and thereby forced to give the construction to them with a construction agreement that was to be completed within 12 to 18 months to different clients. The total plot is 20 and out of that 18 plots are utilized for construction as per the plan. One plot was utilized for digging two wells to provide water for occupants. As per the original drawing and leaflet one plot was allocated for children's play area garden etc., and of late that plot was also occupied by the builder for construction. After having lots of problems with the builder few got their keys and occupied the villa. There are 4 villas whose work NOT completed as of date. We had formed a society since one year and the owners of this four Villas and one villa held by the owner of construction company have NOT paid any maintenance as of date and other two unoccupied persons also.

I would like to have a clarification on the following points from known legal authorities / persons through this circle.

1. What is the legal aspects to recover the maintenance fund from those clients whose work is not completed as of date.
2. How to collect maintenance dues from unoccupied clients.
3. Since we had paid the amount for the plot and undivided land at the time of registration, what could be done if the builder is not registering the undivided land on society name or individual name.
4. Has the builder can prolong the construction in the land and create problem and harass the occupants as we are facing lots of problems due to personal security as people are working from different parts, drinking water is getting contaminated due to dust and fume, lots of other problems due to cutting, grinding, concrete works etc.
5. Out of 15 occupants only 2 owners are staying permanently and others are coming during vacation / holidays etc only.
6. Builder has not made any provision for waste management and (storage of rainy water facilities as required by state Govt construction rules).

It world be helpful if qualified and knowledgeable members can give some feedback on the above subject.