They aren't exactly waved but there are no specific requirements. That means that they will not tell him he must make $x per year but you could still be denied if it looks like he is making no money at all and once you arrive, you would both be on welfare. Therefore, he should give them last years tax return if he has one and if he just started work he can get a letter from his employer stating that he is employed there since date x and makes $x per hour/month and he can include copies of his last 3 pay slips.
And a big downside with inland is that you are not supposed to leave. As you are from the Philippines, I assume you need a TRV. Should something happen at home, one of your family seriously ill or has an accident and you want to go and be with them, if you have a pending inland, you could easily be refused a TRV to go back to Canada again and that means you lose your inland and the time you waited already would be for nothing.
You can file outland while you are in Canada visiting or you can apply outland and visit Canada during your processing if you have/get a TRV. However, TRV's are often denied for visiting spouses due to perceived risk of overstay. If you want to stay longer than 6 months and your processing is ongoing, you can apply to extend your visit status from inside Canada. Just tell them that you are waiting for your outland, show funds or a letter from your spouse along with pay slips saying they will support you and show that you have travel insurance in case you get sick or have an accident.
If you get a TRV, you can marry in Canada and then apply outland and then you can either leave or stay depending on what you want.
