I don't want to be negative, but here are some hard thoughts....
Not sure what state you are in?.. but by the $400. pricing, you're not in a drought "$ hay area" at that price. 10 acres for 30 horse turn-out? How much is acreage in your area? Have you figured the cost of building a new facility? That would let you know if it is over-priced. What is the appraisal?
What is the median price in your area for full care? What % vacancy rate do they have? (10% is normal) Do your figures by that price.
I would never have another job
from 8-4 and expect to be successful...
Your business will depend on your "hired help doing their job?" Finding good help takes time, even when your there with them. I have also found that it is better to "rent your 2nd house" to another "horse person" on premise, then use those $ to pay for your hired help. If you have to "fire them" it is fewer problems, than having to go through evection...and you won't be there to protect your facility. (because of your other job)
1 man (7-4) should easily be able to feed & clean & turn-out, blanket 25 stalls. I am not sure what other services you will provide? and if you
could do that, after 4:00? or have the funds for another part-time (day off for full time man) Weed eating, repair, composting. You ought to know by forums, that "trade-outs" for work, rarely work-out.
Since the facility is known as self care, it will take some time to turn it around. Keep your self care separate from the full care barn. Self care barns always smell from lack of cleaning, & boarders fighting over stolen feed. You might figure/change it to partial care... you clean, and feed with their feed. That might make the transition easier to full care.
$750K. why risk it? Your keeping your other job... so your just adding to your work load and a huge $ risk. Your basically going to be a absentee owner. That's a lot of $ depending on a hired hand... The economy is #%@. Are you sure you want the extra work? I also think you need to double check your figures..unless your putting down a lot more $ than 25%.
I have 50 stalls (full care) and 20 pasture horses, 120 acres. Banks don't care how many horses you have in your barn, or the price of hay & feed, as long as you make your payment.... I'm here 24/7, can't remember a vacation... riding my horse is a luxury, and only with my cell phone close at hand! It's a full time job.
( I love my TR3 arena groomer, best buy)
I do wish you the best, but be smart, don't let your heart rush into it...