@David Faulkner for me its the cap rates, cash flow and cost of entry.  

To be honest the cash on cash and cap rates were lower than I had heard on podcasts and in forums etc. so I was constantly discouraged.

Good Evening everyone,We're looking at a property in central San Antonio, TX and we are on contract now in the option period.The property has a CAP rate of 9%. 

We don't want to rely on cap rate seeing as the property only has 3 units, but we also cannot find any solid comps.

I would be worried that putting 20-30% down and then cap X, vacancy, maintenance, etc are higher then estimated or rent lower resulting in the property no longer cash flowing. 

I received initial information about the property ran the numbers meets both 50% rule and 1% rule and has a cap rate of about 6.5%.One of the strategies I heard on the podcast was to inquire about owner financing since.

Also, below are the exact details of the loans and its history.Details --------Initial Purchase Price = $265K1st loan = $177,830.00 @ 4.125%2nd loan = $33,380.00 @ 5%Current comps in area =  $185k - $195kTotal Monthly Costs = $1803.84Current Rent = $1700.00No money saved up to cover Cap Ex nor smaller repairsHistory --------2006Purchased for 265KTwo loans: 1st for 235k @ 6.5%, 2nd for 30k @ 8.5%2013Refinanced the first loan using HARP brought the rate down to 4.125%2014Tried to short sell property due to a hardship (lost a job)Short Sale got denied, but the second loan lowered rate to 5%Credit took a hit2015 Started renting property 

Most MH’s are not built to last and therefore would result in very high maintenance and cap X rates.

I add construction costs to my purchase price in order to come up with the cap rate I am looking for.

Most RE agents commissions are capped (~6% per deal?)