Analyzing a hybrid LTR and STR House Hack

[Josiah Sia]

Trying to analyze a quad that we are thinking of doing a House Hack on... This would be our first investment property and it's quite a large amount (for us anyways) so I'm a bit nervous about the #s. I know they can't be perfect, but I want to make sure I'm at least doing my best due diligence.

Could anyone please provide their opinion on this property? Would you buy?

Property $550,000

Tax $14,000 annual

FHA/PMI $400

Insurance $250

Repairs: looks to be minimal but no inspection yet

Estimated Mortgage $3,600

Estimated Closing costs: $6300

Estimated LTR Income (2 units): $2200

Estimated STR Income (1 unit): $2000

4th unit we will be living in, using FHA 3.5% down

RUBS Implemented

I'm getting that the cash flow is -$1,182.55 but we were paying about $1650 mortgage before. So that's $467.45 saved each month essentially. 

If I do a simple "house hack" quick analysis this is what I get:

Mortgage Payment	$3,800
Rents (If all 3 were LTR)	$3,290
Reserves ($300 + $329)	$ 629.00
	($119.00)

So it seems to be a go do it. Am I overthinking/over-analyzing? Or should I just pull the trigger?