Newbie Question for Due Diligence - Checklist and ideal time period
Hi all, I have a lot of experience with residential real estate investment and am going to go in contract soon for my first commercial property.

It's a retail strip with 4 small stores that are all leased out. I'm buying it with 35% down, financing the rest.

How long do people usually have due diligence periods for? The broker asked me how long I needed and I just said 30 days, not sure what's considered the norm.

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Anybody got any good checklists or list of things to go over during the period? I know there's a ton online but I want to hear what someone experienced has to recommend, rather than just find a random checklist online.

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Thank you.
[{"id": "ispx5ov", "text": "30 days might be enough for this small property. Typically for large acquisitions the due diligence might take 3-6 months.\n\nFor a due-diligence checklist, you can check one of my previous posts here:\n\nhttps://www.reddit.com/r/CommercialRealEstate/comments/vfj5w5/comment/icwc5iv/?utm\\_source=share&amp;utm\\_medium=web2x&amp;context=3", "replies": [{"id": "isq3nvi", "text": "property is 1.1million, thank you!", "replies": [], "depth": 2}], "depth": 1}, {"id": "ispxzyf", "text": "1. 60-90 days due diligence.  60 at the minimum.  30 is too short.\n2. Check:\n   1. Current Landlord tax returns for last three years (for this property).\n   2. Current Landlord PLs for last three years (for this property).\n   3. Review all leases of current Tenants including Original and options.\n   4. Age and condition of roof, last repairs, etc.  Warranty?\n   5. Age of HVAC and all mechanical systems.\n   6. Age of parking lot?  Last resurfaced?\n   7. Condition of all structural walls?\n   8. If there is a basement or crawlspace check for water damage or settling.\n   9. Check for deferred maintenance.", "replies": [{"id": "isq3pec", "text": "Thank you so much", "replies": [], "depth": 2}], "depth": 1}, {"id": "isq890o", "text": "What types of leases? Gross or modified or Net?\n\nGet estoppels SNDAs. 30 is pretty quick unless you know what you\u2019re doing. Also depends how much you\u2019ve gotten pre PSA.", "replies": [], "depth": 1}, {"id": "isqho2v", "text": "You should be asking your lender, they may take 60 or 90 days or whatever.", "replies": [], "depth": 1}]