FB machine learning automagically optimizes the ads over time which increases the click through rate and lowers the cost per click.

For example one big row of 15 units isn't optimal but if I want to break them up I would have to have 20' between blocks, which would kill yield.Instead of waiting for them to modernize their multi-family regs (at least a year out, maybe two) or sucking it up and living with the costs as things stand, I could instead do 5 "triplexes" of single-family + 2 ADUs and bypass some restrictions (only 5' setbacks between blocks, 1 parking space per ADU unit instead of 1.75, etc.).But I'm concerned that Seattle builders may quickly move away from this strategy as HB1110 will (in Seattle and many other larger cities/counties, but not mine) soon enable sixplex townhouses in pretty much all the areas where the condo-ized ADU strategy has been mushrooming. 

Evaluate market conditions closer to your next move to optimize the timing for a 1031 exchange.HELOC for Investments: Utilizing a HELOC could provide funds for a down payment on an Airbnb or potential flip.

We recently downsized/ optimized our portfolio to less units in better locations closer to our primary, and I couldn’t be happier about that.

Than month's on end and ton's more manpower constantly trying to optimize it, refine, get more efficent because for "some reason" it kept costing more then thought and not making nearly as much as hoped.       

I did an exponential regression model and plotted 500 data points for new builds between $300k and $400k which is where we like to be for spec and found that the optimal size is 1400-1600. our floorplan is 1730 sq ft because we wanted to have 4 bedrooms and 3 bath.

@Cherilyn Williams I’m still full of cheerful optimism after being a landlord for 5 years but am in the same boat.

I'm willing to leave the property empty for a year to take advantage of owner occupied loans, if that's possible.Here are my estimates..Property: 1,355 sq ft, | 3br 2bath | 8,500 sq ft lotComps / ARV: 500-560k ~ 530kTotal Needed: 340-400k ~370kSale Price: 270-310k ~ 290kRenovations: 70-90k ~ 80kSevere cleaning needed (doing myself)Severe landscaping needed, it's a jungleI'd like to maximize potential value and be at the top of in-area comps, so would like to do a full gutCash on hand: 20k - 30k------------I'm considering,- Seller financing + separate renovation loan- FHA 203K (BRRR)- Fannie Mae Homestyle Renovation (if down payment is below 5%) (BRRR)------------Seller Financing + Separate Renovation LoanPros:Low down payment (via seller willingness) <= 3%Low interest rate (via seller willingness) <= 3%Cons:I'm unaware of how I can finance rehab without a personal loanMust cash-out refinance to obtain equity, conventional loan rate will not be as good------------FHA 203KPros:Low down paymentBundles rehab costsCons:Higher interest rate than the seller financed loanMust cash-out refinance in order to obtain equity and make an investment property------------Fannie Mae Homestyle RenovationPros:Bundles rehab costsCons:Higher interest rate than the seller financed loanMust cash-out refinance in order to obtain equity and make an investment property------------I may be totally off on what would be optimal here but wanted to provide my current thoughts.

It is the primary reason on a plethora of reasons that ADU additions typically are not optimal RE investments.  

Consider whether you aim to build a substantial real estate portfolio for ongoing income or diversify investments over time.Risk Management: Assess risks associated with property ownership, including vacancies, maintenance costs, and market fluctuations.Risk Management: Assess risks such as vacancies, maintenance costs, and market fluctuations associated with owning multiple properties.Tax Planning: Work closely with a tax professional to develop a balanced strategy that maximizes current income offset with depreciation, while planning for depreciation recapture and optimizing use of 1031 exchanges.