To buy an apartment building, you will typically need the following:

1. Sufficient funds: You will need enough money for a down payment, closing costs, and any renovation or maintenance expenses. This can come from personal savings, loans, or partnerships with investors.

2. A solid financial plan: Lenders and investors will want to see that you have a comprehensive plan for the property, including projected income, expenses, and a clear strategy for managing and growing the investment.

3. Financing: If you require a loan, you will need to qualify based on your credit history, income, and overall financial health. Lenders may also require a favorable property appraisal and inspection.

4. Real estate knowledge: Familiarize yourself with the local market and property regulations. Being knowledgeable about zoning laws, tenant rights, and property management will help ensure a successful investment.

5. Due diligence: Conduct thorough research on the apartment building you are interested in purchasing. This includes inspecting the property, reviewing financial statements, assessing the condition of individual units, and evaluating the overall potential for profitability.

6. Legal assistance: Engage a real estate attorney to help with the purchase process, draft contracts, review lease agreements, and ensure compliance with local laws and regulations.

It's essential to consult with professionals such as real estate agents, lenders, and attorneys to guide you through the complex process of buying an apartment building and ensure a successful investment.

When purchasing commercial real estate, you will typically need the following documents:

1. Purchase Agreement: A legally binding contract outlining the terms and conditions of the purchase, such as the agreed-upon price, contingencies, and closing date.

2. Property Title: The deed or title to the property, which verifies ownership.

3. Financial Documents: Financial statements, tax returns, and income/expense reports for the property, providing proof of its financial performance.

4. Environmental Reports: Depending on the property type and location, you may need environmental reports assessing potential contamination or hazards.

5. Leases and Rental Agreements: If the property has tenants, you will need copies of their existing leases or rental agreements.

6. Property Surveys: Surveys show the boundaries of the property and any encroachments or easements.

7. Insurance Policies: Review existing insurance policies and ensure appropriate coverage for the property.

8. Property Inspection Reports: Reports from property inspections, including assessments of the physical condition and any necessary repairs or maintenance.

9. Closing Documents: Various legal documents needed for the closing, including loan documents if financing is involved.

It is recommended to work with a real estate attorney who can guide you through the necessary documents and ensure a smooth transaction.

The best time to buy a house depends on individual circumstances and market conditions. However, there are a few factors to consider:

1. Market Conditions: Typically, buying during a buyer's market, when housing inventory is high and prices are relatively low, can give you more negotiating power and options. However, it's important to research the local market and consult with a real estate professional to determine the current conditions.

2. Interest Rates: Low-interest rates can make homeownership more affordable. Taking advantage of historically low rates can save you money on mortgage payments in the long run.

3. Personal Financial Situation: Consider your financial stability, including your credit score, job security, and ability to make a down payment and handle ongoing mortgage payments. Buying a house when you are financially prepared is crucial.

4. Life Stage and Future Plans: Consider your current life stage and future plans. If you plan to stay in an area for a while, buying a house can offer stability and potential for appreciation. However, if you anticipate relocation or major life changes, renting may be more suitable.

5. Seasonal Trends: Depending on the region, housing markets may have seasonal fluctuations. For example, spring and summer tend to be popular times for homebuying, but there may be more competition and higher prices during these seasons.