It depends on several factors
A) Skilled Worker: depends on your education and work background
1) if your are eligible under FSW (Federal Skilled Worker) then no LMO needed
Check for FSW http://www.cic.gc.ca/english/immigrate/skilled/index.asp
2) if your husband is graduated from Canadian university and have one year full time work experience in skilled category, or you have two years full time work experience in skilled category (skilled categories mean the experience should fall in skill level 0, or A, or B, check following link for NOC code for your experience http://www5.hrsdc.gc.ca/noc/english/noc/2006/html/Matrix.html)
Check for info on Canadian Experience Class (CEC) http://www.cic.gc.ca/english/immigrate/cec/apply-who.asp
3) for provincial nominee LMO is a must in all cases expect the applicant has successfully completed a Masters or PhD degree from public funded Ontario university then he can apply for Ontario PNP without a job offer. There is a Cap 1000 nominees per annum for applicant with Master degrees, no cap on applicants with PhD. in all other cases LMO is must.
4) Quebec Skilled Worker : Skilled immigration is based on education and work experience (you can do evaluation at http://www.immigration-quebec.gouv.qc.ca/en/index.html) and if you are a student or temp worker in Quebec the process is similar to 2.
B) Investor, Entrepreneurs, Self Employed Class
Investor need a min net worth of $1.6 m and min $800K investment in Canada, plus have business experience
(http://www.cic.gc.ca/english/immigrate/business/investors/index.asp)
Entrepreneurs: Min 2 years exp as entrepreneur, min net worth of $300,000 (Check for more info: http://www.cic.gc.ca/english/immigrate/business/entrepreneurs/index.asp)
Self Employed: relevant experience that will make a significant contribution to the cultural or athletic life of Canada or
experience in farm management and the intention and ability to purchase and manage a farm in Canada
(check for more info http://www.cic.gc.ca/english/immigrate/business/self-employed/index.asp)
Approx in all cases proficiency in English and proof of funds are required. To prove English proficiencey proficiency IELTS is needed. For Quebec French and English is required with more weighted for French proficiency.