Mortgage Guidelines Library: Plain-English Guides for Florida Borrowers
Mortgage guidelines decide who qualifies, how income counts, and which homes lenders will finance. This library gathers our plain-English guides to the rules underwriters actually use, so you can find your situation fast. Each guide is written by Nathan Young, a Florida mortgage broker since 2000.
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Every file is different. Call or text and you reach Nathan Young, the licensed broker who owns North Star Mortgage Network, not a call center. You will get a straight answer about your options.
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Quick Answer
Most mortgage guidelines come from Fannie Mae, Freddie Mac, FHA, VA, and USDA. Lenders can add their own stricter rules, called overlays. As a broker, I compare how many wholesale lenders apply these guidelines to your file. Guidelines may change, and lender overlays may be stricter.
Browse by Topic
- Alternative and Non-Traditional Income
- Credit, Debt, and Manual Underwriting
- Conventional Loans: Fannie Mae and Freddie Mac
- VA, FHA, and USDA
- Property Types and Appraisals
- Special Situations
- Down Payment Help
Alternative and Non-Traditional Income
Rental, child support, alimony, commission, seasonal, projected, Social Security, RSU, and self-employed income. How lenders count it, and what to document.
- Fannie Mae Rental Income Rules: What Counts in 2026
- Alimony And Child Support Income
- Understanding Seasonal Income for Mortgage Qualification
- Verification of Commission Income: Guidelines for Mortgage Qualification
- Projected Income: How It Can Help You Qualify for a Mortgage
- Grossing Up Social Security Income Mortgage Qualification Guide
- Employed By Family Guides
- Understanding Restricted Stock Units (RSUs) and How They Impact Mortgage Qualification
- Crypto Mortgage Loan Programs: Using Bitcoin, Ethereum, and Stablecoins to Qualify for a Home Loan
- Bank Statement Loan Jacksonville: How Self-Employed Buyers Qualify
- Asset Depletion Loan Jacksonville: 2026 Rule Changes Explained
- Florida Self-Employed Income Loans: Qualify Without Tax Returns
- FHA Loans and the Self-Employed: Key Changes You Need to Know
- W2 to 1099 Mortgage: How to Qualify for a Home Loan After Becoming Self-Employed
Credit, Debt, and Manual Underwriting
Student loans, thin credit, manual underwriting, and how lenders handle debts and rent history.
- Student Loans and Mortgage Qualification: 2026 Rules
- VA Manual Underwriting Guidelines (2026): DTI and Residual Income
- VA Compensating Factors — the strengths that carry a VA file with a higher debt ratio.
- VA Gift Fund Guidelines — who can give, the gift letter, and how lenders verify the money.
- FHA Manual Underwriting: What It Means and How We Can Help
- Manual Underwriting
- OMITTING PENDING SALE: How to Exclude Your Existing Mortgage When Buying a New Home
- Written Verification of Rent: What Lenders Require
- Fannie Mae and Freddie Mac (Conventional Loans) No credit scores
Conventional Loans: Fannie Mae and Freddie Mac
Where the two agencies differ, and when that difference changes your approval.
- Fannie Mae vs Freddie Mac Guidelines: 2026 Differences
- Understanding the Freddie Mac Home Possible Loan
VA, FHA, and USDA
Government-backed loan rules for Florida borrowers, including USDA fees and VA eligibility.
- USDA Home Loan Guidelines in Florida (2026 Update)
- VA COE Appeal Guide for Veterans Seeking Home Loan Eligibility
- FHA Streamline Refinance in Florida
Property Types and Appraisals
Manufactured homes, timeshares, flips, and appraisal rules that affect whether a property qualifies.
- Manufactured Home Mortgage Guidelines (2026 Update)
- USDA Manufactured Home Loans in Florida (2026 Update)
- Manufactured Home Foundation Inspection for FHA, VA, USDA & Conventional Loans
- Timeshares
- Property Flipping Rules
- Amendments Impacting Appraisals
Special Situations
Refinancing when you are not on the loan, non-permanent residents, seller credits, small loan amounts, and more.
- Can a Realtor Parent Gift Their Commission Toward a Child’s Down Payment?
- Who Can Refinance a Home When Not Currently on the Loan? Your Guide to Rate & Term and Cash-Out Refinancing
- Mortgage Guidelines for Non-Permanent Residents & Foreign Nationals
- Seller Contributions Florida: Cut Your Closing Costs
- Can you get a mortgage for under $50,000?
Down Payment Help
Florida bond and assistance programs for qualified buyers.
- Florida Housing Bond Program: How to Buy a Home with Down Payment Assistance
- FHA Down Payment Assistance in Florida: Three Ways to Cover Your Down Payment
Don’t see your situation? Send me the details and I’ll tell you how lenders are likely to read it. Get a free rate quote or call 904-880-6741.
Mortgage Guidelines FAQ
What are mortgage guidelines?
They are the rules lenders follow to approve a loan: how income, credit, debts, assets, and the property are reviewed. Most come from Fannie Mae, Freddie Mac, FHA, VA, and USDA.
Why did one lender say no when another might say yes?
Lenders can add overlays that are stricter than the agency rules. A broker can compare how different wholesale lenders treat the same file. All loans are subject to credit approval.
Do mortgage guidelines change?
Yes. Agencies update their guides throughout the year. Our guides note the date of the rules they cover, and guidelines may change after publication.
About the Author
Since April 18, 2000, Nathan Young has been a Florida mortgage expert and the founder of North Star Mortgage Network, Inc. He is a 2025 NAMB Mortgage Broker of the Year and a 2026 NAMB Influencer of the Year. North Star Mortgage Network works with many wholesale lenders to offer competitive rates and personalized service, backed by Hundreds of 5-Star Google Reviews.
North Star Mortgage Network, Inc. | 12058 San Jose Blvd, Suite 404, Jacksonville, FL 32223 | 904-880-6741 | www.nsmn.com
Company NMLS #356789 | Nathan Young NMLS #325206
“Your Best Interest Is My Principal Concern.”
Educational content only. Guidelines may change, and lender overlays may be stricter. Available for qualified borrowers. All loans subject to credit approval. Program guidelines apply. Rates and terms are subject to change.
