Any advice on what professionals to bring into the conversation?

Just from a simple conversion about your financial situation, a lender can tell you about how much you'll be able to borrow and how much you'll have to bring to the table as down payment.

yea zonning will need to advise if the property is zoned and can be converter. there are fees associated with conversion as well keep in mind. and for price, you can do quick zillow search on sold houses in area for similar properties on both sides.

I've seen some attached garage conversions which look a lot more doable and are probably less expensive. 

There has also been a few items and snow tires stored since then belonging to the parent of unit 1. 

•Banning ownership of your IRA of more then 10% of ANYTHINGoIf you wanted to own a rental house in your IRA, only the IRA itself could own it; you wouldn’t be able to use the statutory protection of an LLC.oNo more use of Land Trust or PPToNo more Checkbook IRAsoNo more Joint Ventures in which your IRA owns 10% of a deal or an entity•A proposed limit on Roth ConversionoOnly Pre-Tax traditional accounts may be converted to a Roth IRAoFor you business owners, this will effectively mean that only your Employee Elective deferrals ($19,500 in 2021) and Pre-Tax Employer matching will be eligible for Roth Conversions.

A planned buy and hold turned condo conversion.

For instance, this year, my passive losses will allow me to do larger Roth conversions and stay in the lower tax brackets; note the rates are a bit better now than after 2025. 

Again, the BiggerPockets store has some books for this or you can learn by watching podcasts, reading blogs, and interacting on the forum.

We specialize in ADU and garage conversions STR income.