Multiply the monthly Hoa fee by 60 or 120 (5-10 years) and if you wouldn’t have bought at that price move on.

Thats $120.00 per person multiplied by every person on the lease.  

There are sites you can do searches for to see the multiplier for the type of business you are selling.

It is a flawed metric, just like the gross rent multiplier, because it doesn't take into consideration expenses. 

GPP multiplies Total Principal Received for the year

Right, if we're going by the 1% rule:the $250K(all cash deal) property should give you a $2,500 monthly income with no mortgage paymentthe $1.25M(20% or $250k down) property should net you $12,500 monthly income with a mortgage payment of about $4,000, which nets you $8,500.Obviously, these are very simplified numbers that don't take into account a few other factors which will add to your costs, but leveraging the mortgage will really multiply your returns.

Multiply this by 4 and I get 1600sqft. 

The home office deduction can either be calculated as the percentage of the home that is EXCLUSIVELY used for business (associated expenses would be multiplied by this percentage), or a simplified option which is $5/sqft with a maximum of 300 sqft.At any rate, this does nothing for you DTI.

Multiply those numbers by 5 to get the actual asking price.

We calculated the amount to have in reserves by multiplying the mortgage payment by 8 months.