I'm looking to use it as an investment, not a primary residence.

If you want to manage your own properties, I would highly recommend buying within an hour of your primary.

I currently own a 1 bed 1 bath single-family house as my primary residence.

You would only pay taxes on all passive investments in a traditional SDIRA at distribution, unless you have a mortgage, then the portion of the income derived because of the mortgage will be subject to UDFI (unrelated debt finance income) which will trigger UBIT (unrelated business income tax). 

Other factors as well of course: DTI, the LTV, primary residence vs investment property, etc.

Short term rental permits are only granted to owners who will be renting their primary residence.

Have the property taxes increased because this is an investment property and not a primary residence?

Property taxes and insurance costs are best obtained through local county websites or reaching out to insurers directly for quotes specific to the area.Tools like BP Pro and Reventure can be helpful for an overview, but it’s a good idea to validate their data against primary sources to ensure accuracy.

You will also need about 6 months of reserves deposited in a traditional financial institution rather than a crypto account.The next step is to find the target property and calculate the acquisition costs and costs of construction along with the after-repair value. 

This would also be where an appraisal would be ordered in a traditional sale, but if using a hard money Lender, they have probably already evaluated the value before offering you terms.5.