Installment 1.4K while renting is out at 2.7K, this prop already giving you passive income, why still want to sell this cash cow?

Go check for other available options for you to fund your new props investment.

Be patient, u already on the positive track. Wait for more input from rest of taikor. You can choose to refinance for cash flow too. 

You first need to know if there is anymore potential upside for existing unit... Though from 280 to 500 in 2 years is very respectable already

Have you check with bank on your loan capacity? Since you are paying 1.4K as rental, you can get a condo within your budget, use the master room and rent out rest of the bedrooms.

For me, 3 props better than 2 props due to:
1. More diversified.
2. I guess it is easier to go from 300k to 400k, than from 700k to 800k?

But more props more hassle, may lose some precious family time. just m2c. cheers 

Depends on the purpose. If one has too many properties, although all are giving very good, positive cash flow, it's still best to consolidate to have less properties. For example, if one has 3 RM300k properties and is planning to get a fourth prop, also at RM300k, he/she will need at least 30% downpayment.  Instead, I would rather sell all 3 and get 2 properties worth RM700k each. It's pretty much the same as refinancing, as one will be taking loans that is based on the property's current market value. Refinancing a current property will give cash but without a doubt also increase the monthly installment.

Mathematically, it will work out to be the same.