Eventually conventionally will probably cap you at 7-10 properties as well. 

Hi,I am new to RE Investing and would like to check if following numbers makes sense or am I missing anything:Property Details : 3/2 TownhomeIncome: $2800Expenses = $2700 (approx)Here is the break down.Mortgage + Tax +Insurance = 1800HOA = 265Vacancy = 5 % per month = 140Repairs + Cap Ex = 200PM = 10% per month = 280Total Cash Flow : $100I can get greater cash flow if I manage myself but I am not planning to do it.I am thinking of getting HELOC and buy a new primary residence and rent this one.

Just dividends,  interest,  cap gains and rents.  

Many of them have caps to what you can sell the homes for so beware of this.

looming cap ex?

I've had 2 issues with tenants not paying rent resulting in them leaving and yes they left a mess, but we cleaned it up, got it re-rented (for a lot more money as there are rent caps in place in that area) and moved on.My first rental was accidental-I bought it to live in and moved and converted it into a rental. 

Since then I started to help people to figure out and mostly giving pro, cons, market value, ROI, CAP, and help to get funds to purchase.

Her rent is 625.00, and it caps at 1025.00 per month.

Cap rates are generally lower than prevailing interest rates.  

It is going to be a trade off, if you want something recently renovated you will take a lower cap rate, something that is in good condition with a few minor updates you will get an average cap rate, something with deferred maintenance you need to see a higher cap rate.