Here's how they break down:Fannie Mae HomestyleMinimum Down Payment: 3%-5% (Primary Residence) & 20% Down (Investment/Second Home)Credit Score: 620Minimum Loan Amount: $50,000Maximum Loan Amount: Per County Loan LimitsOccupancy Types: Primary Residence, Second Homes, and Investment PropertiesUnit Maximum: 4 UnitsAcceptable Renovations:-Structural Improvements (e.g., new roofing, foundation repairs)-Cosmetic Enhancements (e.g., new flooring, updated bathroom/kitchen fixtures)-Energy Efficiency Upgrades (e.g., solar panels)-Accessibility Modifications (e.g., ramps, widened doorways)-Luxury Items (e.g., pool)-LandscapingNot Acceptable Renovations:-Commercial Use (e.g., turning a residential property into a commercial property)-Temporary Structures-Non-Residential Buildings (e.g., barns, stables)FHA 203(k)Minimum Down Payment: 3.5%Minimum Credit Score: 620Minimum Loan Amount: $50,000Maximum Loan Amount: $524,225Occupancy Types: Primary Residence ONLYUnit Maximum: 4 UnitsAcceptable Renovations:-Structural Improvements/Reconstruction (e.g., adding rooms, bathrooms)-Cosmetic Enhancements-Eliminate Health and Safety Hazards-Energy Efficiency Improvements-Major Landscaping (e.g., grading, tree removal, adding walkways)Non-Acceptable Renovations:-Luxury Items-Commercial Use-Temporary Structures-Non-Residential BuildingsBoth of these renovation loans are similar in many ways, but the key differences are:1.

My situation currently is I have 1 SFH rental that is owned by my LLC and doing well, and also I'm doing a live-in flip on my 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 could put seller financing on second position and get financing for the first and do a 90% CLTV.I don't think any lender (unless private) will let you put nothing down.

I think we have the option of taking out a heloc  and begin to invest elsewhere.The other idea , that I was thinking is paying off our primary residence which we owe 425k.

that we’ve learned in our 24 years, managing almost 700 doors across the Metro Detroit area, including almost 100 S8 leases:Class A Properties:Cashflow vs Appreciation: Typically, 3-5 years for positive cashflow, but you get highest relative rent & value appreciation.Vacancy Est: Historically 10%, 5% the more recent norm.Tenant Pool: Majority will have FICO scores of 680+ (roughly 5% probability of default), zero evictions in last 7 years.Class B Properties:Cashflow vs Appreciation: Typically, decent amount of relative rent & value appreciation.Vacancy Est: Historically 10%, 5% should be applied only if proper research done to support.Tenant Pool: Majority will have FICO scores of 620-680 (around 10% probability of default), some blemishes, but should have no evictions in last 5 yearsClass C Properties:Cashflow vs Appreciation: Typically, high cashflow and at the lower end of relative rent & value appreciation.

So as @Melanie P. said, any positive cash flow is enough. 

But if your goal is to cashflow positive from the Day 1, you may find it very challenging due to current day interest rates, high cost of construction and the fact you won't have the efficiencies of a seasoned developer building at scale.

Quote from @Lisa Albright: Hi All,Newbie here, just a quick question we are building an addition on our second home, we have a primary residence, and two rental properties.

Hey @Brett RiemensniderThere are a TON of banks/credit unions that will offer as low as Prime on a heloc on your primary residence.