And using the process buy a new property or properties that you also intend to hold for investment use.The issue for you might be that you purchased this property with the primary intent of selling. 

I won't be able to make the cottage legal rental without living in the primary home myself.

Even in HCOL areas, adding an ADU typically does not make sense because developing a single small unit is the most expensive residential development that exists.Adding an ADU is a lot of work (probably more than a brrrr but with worse return), has poor financing options, typically adds less value than the cost of the addition, and detracts something from the primary structure even if it is just yard and privacy.Good luck 

Here’s the winning formula successful local house buyers and wholesalers use to connect with sellers, close deals, and create win-win solutions:Be Relentless: Show up every day with positivity and persistence.

I'm passionate about teaching real estate in underserved communities and helping others build wealth through knowledge.Looking Ahead: I’m seeking local and out of state investors, lenders, and professionals in the Atlanta area for STRs and MTRs, and in Birmingham, Phoenix, Columbus, Macon, and Augusta, GA for long-term rentals and small multifamily deals.Let’s connect if you share my vision for creating real estate that not only generates wealth but also builds lasting, positive change.

This is an investment property of the seller, not their primary residence.

That way you can put down as little as 3.5% for FHA or 5% for any primary.

Which may also be a reason to hold on to your current place (appreciation).Second, have you been in your primary at least two years.

I have 880 credit score, decent savings, and no other debt except for 300K mortgage on my primary residence (worth $1.5 million).

Here are some general guidelines: Lien Position1st Position LienEquityMinimum Down Payment of 20-25% (a 30% equity to sale price is preferred)Down Payment made in certified funds and not borrowedMaximum Funding of 70% ITV (Investment to Value)SeasoningMinimum of two monthly payments already made12 months or more preferredPayer CreditCredit Score of 650 or higherNo major derogatory trade lines (No 90-180+ days delinquent, foreclosure, repossession, bankruptcy, etc.)No decline in credit since purchase of businessTermsPrefer 60 months or lessMaximum of 72 monthsNo Balloon Payment preferredCash FlowBusiness has positive cash flow1.25 debt service coverage ratio preferred.DocumentationPersonal guarantee from a creditworthy individualStandard documents including Note, Security Agreement, and UCC-1 filing.Tax Returns on the business that substantiate profit and loss statements.OtherPayment history current and verifiablePayer Interview indicating buyer is satisfied with business and comfortable making paymentsMotivation for selling the note is not a result of a deteriorating businessConsideration of high risk businesses or geographic areasIn these situations, sometimes a partial is a better option.