Hi Mahin, welcome to the community!

there is no bank, no mortgage, and therefore no due on sale clause.if there is a mortgage in place, and you take the payments over, this is typically referred to as subject-to or sub2 and is much higher risk for everyone involved.

But the moment you say "well that sounds awesome, can you get that over to me in writing" it instantly turns into uhm's ah's and but's. 

Because 0-5% down does NOT happen unless you are owner occupying the home.

Be sure that you are honest from the jump, your estimated rate are only as good as the info you give them.

If you allow this to continue, they will only get worse over time, and your losses will increase.I suggest you hire an attorney.

That limit has bounced all over the place for the last 50 years and is subject to congress' whims. 

Depends on the actual deal I have seen 85/15 rarely 90/10 but keep in mind your primary home will have a second lien on it typically if your LTV is over 75%. 

They also benefit from strong schools, which can be a huge draw for long-term tenants.While you may not achieve high cash flow immediately in these areas, the property values and rents tend to appreciate steadily over time, aligning well with your goals.

So, if you are taking 2% of the 5% from the listing commission, it would not come from the agent, the agent has the contract with the seller for the 5%.