Lee,
Too many posts for me to read and memorize, but I'll lend you the benefit of my experience and training, for what it's worth.
1) Craig's right; don't buy a park that small. (He's right on everything, btw.) You'll never sell it, and you can't get a loan on it, if that's an issue. They won't lend on anything less than 15 pads.
2) call local parks and get their rental amounts, so you're dealing with actual data to compare to. No guessing!
3) Are these all park owned homes? (Some of what I'm writing is for others who might read this later) If so, plan to lose a LOT OF MONEY on repairs. In a park that small, they could completely eat up your profit. With a park that small, losing 1-2 tenants can be devastating.
4) Where did you get the $300 amount for liability insurance? Call Kurt Kelley, [REMOVED], ext. 17. Best guy in the MHP insurance biz.
5) I'd NEVER buy a park with those percentages and expenses at a 76%. The whole point of buying a MHP is to have a place with low, controllable expenses. But your tax bill already exceeds more than I'd want to pay for the total expenses, and you can't change that! Why is it so high? Strange. You should be getting taxed as undeveloped land. Look into that to confirm.
HERE's the BIG advice: After I bought such a property, I would transfer the water/trash/sewer costs to the tenants, which would give you $3798 more in profit. Get the details of the $1200 amount. Aren't the tenants mowing their lawns, or is this just for common areas? Get rid of those, lol. If the park owns the homes, send the tenants a letter the first day you take over (which hopefully you won't) and offer to sell them their homes at 10 year, 10% interest rate, no down pmt, seller financing. They'll love you for it, you'll get more money each month, and -- this is the most important part -- they'll be responsible every time their toilet breaks down. So all you will pay for is taxes and insurance.
How in the world did you come up with $119,000? I'd use the current numbers and offer no more than $26,000, if I was crazy enough to buy it.
Re septic tanks, you never mentioned the leach fields. How old are they? Have them evaluated. Moving them to a new location can cost $4,000 each. Get professional opinions on all that before buying.
My suggestion: Look elsewhere for a park to buy! You're on the right track with that! And second, take the 3 day training course from Dave Reynolds and Frank Rolfe. Dave owns [REMOVED] and it's got everything you need to know, including listings for parks.
For Don Hines, no one I know of uses "3 times the annual revenue" as a way to value a commercial property. Here's what you should do: Get the Income and Expenses, subtract them for the Net Operating Income (NOI). Say you get $25,000 for the NOI on a property. I'd multiply that times 10 (for a 10 Cap rate) and THAT's the value of that property.
So (for example) if the other park your wife hated was producing $95,000 NOI each year, that $580,000 price tag would be GREAT. It would have given you a 16.3% cap rate which is a terrific buy. It all comes down to how much profit it can make for you--that determines the value. Stick with the numbers. Too many people are wandering around with no idea about how to value commercial real estate, and that makes you a sitting duck.
P.S. Forgive me if I missed something you said after your first few posts. Sometimes I add things in for the benefit of others who are learning, too.
Good luck.