Or their share of the mortgage/expenses (w/ 100% occupancy) is higher or equal to market rents.Evictions can happen with a house hack and i think a see a bubble. also, a true "hack" is living at the same level you wish but paying much less.

would an FHA loan give me any additional incentives as a first time home buyer rather than a normal mortgage?

I'm thinking about purchasing my mother's home as my family consisting of me, my husband and daughter have been living in it and paying the mortgage the last 4 years.

Note that in Philadelphia mortgage foreclosures are also conducted as sheriff sales, and the state laws and rules to be followed are quite distinct for those two varieties of sheriff sale.

Owner has no mortgage and owns all equity.

If you had to wait another 30 to 45 days to get a mortgage, there would be significant issues.

I'm OK as my home mortgage and rental mortgages are paid off.I started real estate investing in rentals in 1983, and the markets fortunately peaked in 1986, following a dozen years of dizzying rise.

We can afford to eat the mortgage payment, but would rather not of course considering we started down the REI path to build wealth and increase cash flow, not dent our wallets. 

@Adam H.Mortgage is off as this is a line of credit not a mortgage.

A conventional mortgage will typically need 20% down.