Free Advisory Tools

Run the Numbers Before You Decide

Interactive calculators built for Greater Boston real estate. No login, no strings — just clear analysis to help you make a confident move.

Multifamily

Multifamily Investment Calculator

Analyze any 1–30 unit property. Cap rate, NOI, cash-on-cash return, and cost segregation estimates — all in one place.

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Home Buying

Rent vs. Buy Calculator

Compare the true 10-year cost of renting vs. owning in Greater Boston — including equity, taxes, HOA, and opportunity cost.

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ADU Advisory

ADU Feasibility Calculator

Estimate rental income, return on investment, and project cost for an ADU on your Greater Boston property.

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Tax Strategy

Cost Segregation Calculator

See your estimated Year 1 federal tax savings from a cost segregation study — based on your property's purchase price and tax bracket.

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Investment Decision

Multifamily Sell vs. Hold Analyzer

Should you sell your multifamily property now or hold? Model the 5-year return of each scenario with your actual numbers.

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Mature Housing

Downsizing Financial Calculator

Estimate the financial benefit of downsizing your Greater Boston home — including equity release, carrying cost reduction, and net proceeds.

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Questions about your numbers? Schedule a free 15-minute call with Jack — no obligation, just a real conversation.

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JACK GIRVAN
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I help Boston multifamily owners, investors, and homeowners make smart property decisions — improving cash flow, reducing taxes, and building long-term wealth without pressure or guesswork.
 
With a background in real estate and financial planning, my approach is advisory rather than transactional. Whether you're evaluating a 2–4 unit property, considering an ADU, reviewing your equity options, or deciding whether to sell or hold, my focus is helping you understand the financial impact of your real estate decisions before you act.
 
Most property owners don’t need more sales pressure — they need better information.
 
Through property reviews, investment analysis, and collaboration with CPAs, tax professionals, and development professionals, I help clients evaluate their options and move forward with clarity and confidence.
 
If you’re a Boston-area property owner or investor looking for thoughtful advice instead of hype, I welcome the conversation.
JACK GIRVAN
JACK GIRVAN Broker

+1(617) 913-7573

361 Newbury St, Boston, MA, 02115, USA