Los Angeles may provide more stability and long-term growth potential owing to its stronger market fundamentals, even though Philadelphia can have better cash flow possibilities.

We didn't want to over-leverage but we also didn't want to tie up all of our funds when they could be used to acquire multiple properties.

Splurge on a $500 model with a stronger exhaust, to avoid future repairs caused by excess moisture and mold. 

You are heading into a busy season, so if you are priced at or near similar rents, then may be worth waiting longer as market is just getting stronger. 

By partnering with other investors, you can leverage their knowledge, resources, and experiences to help you achieve your financial goals more efficiently.Here are a few potential benefits of partnering with others:Increased Capital: Partnering allows you to pool financial resources, giving you a stronger position to pursue larger investments and potentially increase your positive cash flow.Shared Expertise: Collaborating with experienced investors who have achieved similar goals can provide valuable guidance and insights.

Which ties up all my money and I have to stop marketing until I sell the property for little profit after closing.

I have no issues with ones that will actually close at contract price even if not assigned, but the ones just trying to tie the house up for free, with no intention of buying unless they find a higher bidder, is just wrong. 

Utilizing your AIO loan for personal projects also introduces risks, especially since it's tied to your investment property.

Borrowers have to pay their HOA I am not from Florida either but I believe most states allow the HOA to foreclose for non payment of dues most states give HOA's special foreclosure laws that are stronger than a simple lien in order to give the bank 1st priority otherwise an HOA is a document recorded prior to the first and would hold priority if they didn't sign it or legislate that position away.

What is distance to tie-ins to main line?