@Aaron Brown should probably note that arm has been operating for around 18 months now and arent in our infancy any more.

If it is not explicit excluded from the lease then the garage is included in the lease.  

Yes a larger downpayment can be an option or possibly instead of a 30 year fixed look at some possible ARM options or buydown options to lower your rate a bit.

.$300M Huntington Place Renovations & New Detroit Hotel https://www.crainsdetroit.com/real-estate/huntington-place-renovations-new-hotel-deal-reached$200M Chase Investment in Detroithttps://www.axios.com/2023/09/28/detroit-rebound-jp-morgan-investment$44M Investment, 237 New Jobs: Bollinger Motorshttps://michauto.org/bollinger-motors-plans-44m-metro-detroit-investment/$21.5M Investment for Detroit west side Dexter Neighborhoodhttps://www.clickondetroit.com/news/local/2023/11/01/neighborhood-on-detroits-west-side-receives-more-than-215m-in-investments/$20.6M Investment, 186 New Jobs: BorgWarnerhttps://www.crainsdetroit.com/auto-suppliers/borgwarner-invest-206-million-create-186-jobs$11M, 200 New Jobs: Volkswagen Scout Brand Investment in Detroithttps://www.teslarati.com/volkswagen-scout-11-million-detroit-investment/New Detroit Developments to Be Excited Abouthttps://www.metrotimes.com/detroit/15-new-detroit-developments-to-be-excited-about-photos/Slideshow/32734721/327353923International Companies Choose Detroithttps://www.detroitregionalpartnership.com/international-investment-comes-to-detroit-region/6 New Residential Developments in Detroithttps://detroitisit.com/6-new-residential-developments-in-detroit-to-know-about/PM us if you want to know more:) I challenge you to an arm wrestling match.

This is because current CA state law explicitly allows safe unpermitted units (SB13).  

What information about myself and my partnership can I pre-package to arm myself with before approaching a potential lender?

Sounds like they're still trying to get their arms wrapped around how to underwrite since there's so little history with STRs being done in larger MFRs.

Was your mortgage on an ARM ?

Keep it arms length away from you.

You can prepare yourself for that by having another inspection conducted 10 months in then bringing that to the builder to see if they can fix anything outstanding for you, before the warranty is up (if applicable).In summary, buying a new build means you have to arm yourself with information so that you know what you are getting into.