Purchasing commercial warehouse with land contract
I'm new to this type of contract and I did extensive research to try and find out the pros and cons of the whole thing however I'm still not confident in my knowledge of the whole process and want to make sure I know everything before moving forward.

The building is 375,000$ located in Missoula Montana. The owner wants to sell it using contract for deed. The listing agent wants me to submit an offer. I'm just not sure how to do that or what it that entails. The agent suggested 10,000$ down and $3500 a month and told me taxes are about 5500$ a year. 

What should I do to protect myself before going forward with this? What information do I utilize for submitting an offer? I have never purchased a commercial building before.
[{"id": "dq4qmnv", "text": "&gt;protect myself \n \nLocal real estate lawyer. ", "replies": [], "depth": 1}, {"id": "dq5i432", "text": "Hello, \n\nA good next step would be to contact a commercial broker to discuss the deal. The broker could help guide you through the purchase process and be a resource of information.", "replies": [], "depth": 1}, {"id": "dq89xao", "text": "Is there a tenant in place? What are the rents in the area? How much would it cost to fix up the place for the building? Are there any major repairs that need to be done? What happens if you are more than 30 days late for a payment to the title holder? How many days in default until the seller can cancel the contract ? Are there any default remedies? Is there a balloon payment at the end of term? Is there a set term? What kind of interest rate is the seller charging you? Is it on a 15, 20, 30 year amortization schedule? Are there any other liens or mortgages on the property and will they still be there for you to pay off after you pay off the seller? ", "replies": [], "depth": 1}, {"id": "dqalo7q", "text": "Is contract for deed the Midwest version of owner financing?  The list agent is not working for you. You need some kind of representation if you have never done this before. ", "replies": [], "depth": 1}, {"id": "dqd34ol", "text": "I'm new to this and have only worked with a handful of agents and they all seem to mispreresent things, and imply I'm the one wasting their time. In reality, I feel like they are blatantly lieing to me and then going back on their words.\n\nBefore looking at a building, agent says its for lease or sale. Leasing would be 4000$ a month, and 4000$ security deposit, plus triple net costs(about 1k)\n\nHe suggested  to buy, put 10k down and offer 3500 a month.\n\nFast forward to looking a the building, now he tells me it's typical for 20% down when buying a building. All after trying to tell me how much better an option to buy vs leasing and the costs would be slightly lower and I can walk away from a land contract at any time if anything goes wrong. 20% down, or 75,000$ to walk away is just outright retarded. However 10,000$ would be worth that.\n\nI feel agents continue to misrepresent things and lie to me when searching for a building. The last building the guy was adamant about conceeding anything. We needed up discussing full electrical rework, plumbing and more only for him to back out at the last minute. What is with these people?", "replies": [{"id": "dqhn44u", "text": "If you feel like they are screwing with you, they are probably screwing you. Ditch those guys and never work with them.", "replies": [], "depth": 2}], "depth": 1}]