A recent example, “How much is the monthly association fee?”

I have written about it before in long past. 2) Yes, no PM and no tenant placement fee consideration.

I have heard so many people getting charged the "fees" for signing up for a free CD.

I can probably teach it, but I won't be spending that kind of money for the platform and I doubt people who wants to learn are willing to pay for the platform and tutoring fees. 

Assume that i got margin with IBKR their calculation shows 5.4% and costs 21.8k per year for 400k.So assuming property is 700k with conventional loan and 670k with cash offer.I manage to find another 270k (this is what I'm asking) without paying any origination fees.

For example, I mention that every adult must pay a $30 application fee, pass my credit/criminal background, make a combined income of 3x the rent, and whether or not the property accepts pets.

You can probably beat $2000/year insurance, but the management fee should be 10%, you need to factor in turnover too and 5% is probably not enough for both maintenance and turnover and I assume you added it, but you didn't mention property taxes (which have been terrible in Jackson County lately since Frank White decided to jack them through the roof). 

However, there are also some downsides to consider, such as higher fees/interest rate.

If someone doesn't pay their rent, then it can take over a year to evict them, and then I'd be left paying that mortgage and fees for a lawyer, etc.

Experts say it can be risky for an investment fund to operate this way, since it may require ever more participants to be brought on board, rather than making money from its business.More than 60% of RAD’s operating expenses in 2020, the most recent period for which the company has released audited financial information, consisted of asset-management fees and other payments to a separate company owned by Mendenhall and other RAD executives called RAD Management LLC, according to an analysis of the financial data.Those fees and payments amounted to more than $730,000 that year, RAD said.ADVERTISEMENT“We have limited operating capital, few significant assets and limited revenue from operations,” RAD wrote in the January document, which sought to raise up to about $58 million in new funds, for a total of $75 million of company shares.