How much should someone increase their prices after adding such amenities or does it vary?

Also property taxes jump, fire insurance also increases... 

Additionally, exploring alternatives like legalizing the existing cellar apartment, if applicable, or renovating the current layout to increase rental income could be viable options.

Purchase price: $1,350,000 Cash invested: $150,000 Sale price: $2,200,000 We Converted a duplex to a triplex and increased rents by 150%.

The seller is saying that the lease expired years ago therefore there has been no rent increase.

Lot of condos being built for rental as well so rental income increase may not be as rapid.

It is a thriving city that is attracting several major companies, which will bring in thousands of job opportunities in the next few months and years.

With the increased cost of materials and labor their losses are exceeding policy income.

But I don't see anyone looking back after 10 years and say "I'm thankful I didn't buy that property because it wasn't a good investment" Obviously you're going to have a few outliers but rents will increase overtime.

First, I find that, usually, profits on a property increase with time.