Am Syrian lady came to USA to visit and i have my baby boy her .so how can i bring my husband and my 4 years old daughter

Visitor visa or student visa or if you have asylum or resident status you may petition for them. Have a consultation with an immigration attorney.

Will it be possible ?

Based on the information provided if you marry and your US citizen spouse petitions for you have aggod possibility of becoming a permanent resident.

I am a retired Canadian, visiting the USA ,what do I have to do to live in the USA permanently.

Need to have an employer or qualified family member petition for you or invest in business in US and meet other requirements.

Can my fiance file a fiancee visa a second time?

Yes but there may be additional questions

How long it's going to take for the process and what's the fee?

As a resident you need to married. As a US citizen you may file a fiancé petition if you are unmarked and have met in person during the two years...

Minimum experience in PERM ad is Bachelors and 10+ yrs of experience in IT industry

There will need to be some good justification. Speak with the employers immigration attorney.

Once I get the green card, how long do I need to stay in the US per year

You must retain permanent residence in the US. Also you must not be absent over one year nor over 6 months except under certain circumstances. ...

I-130

If the husband does not come that may bring into question if the mom intends to remain but that can be answered. Having legal assistance would be...

There are a few advantages to filing right away such as the priority may become current sooner and there may bean issue with naturalization such as...

Am I subject to H1b cap?

Unless you have used six years in H1b status you have time remaining and are not subject to theCAP.